Sean Altman

Sean Altman is an American musician and songwriter. He is a founder and former lead singer (tenor) of the singing group Rockapella and a pioneer of the modern a cappella movement. He was a member of Rockapella from its inception in 1986 until he left the group in 1997 to launch a solo career.

As a founding member of Rockapella, Altman became remembered for his role on the PBS children's geography game show, Where in the World Is Carmen Sandiego?, at the time his band served as the house vocal band and comedy troupe. Altman and his childhood friend, David Yazbek, co-wrote the show's theme song, which is recognized as one of the best known television themes in history. Rockapella released seven albums in Japan and two in the United States during Altman's eleven-year tenure.

Member of: Rockapella (Former) - Tenor - Founder

Roshun Alur

Roshun Alur is a relatively new resident of the Bay Area, hailing from the cold tundra known as Massachusetts. Prior to joining Business Casual, Roshun was a member of The Hangovers, an all-male a cappella group from Cornell University, for 4 years. In addition to a cappella, Roshun enjoys playing as many instruments as he can get his hands on, including the saxophone, guitar, drums, piano, and tabla. He is a software engineer currently working at Apple.

Member of: Business Casual (Current)

Leslie Baker

Leslie first discovered her passion for a cappella when a group of rather cute college guys came to perform at her high school in Boston. She followed her dream to the University of Utah where she joined the group INFRARED and became the resident sky-high belter. Leslie is thrilled to have found a new a cappella outlet in the Bay Area, having moved here recently to become a Software Engineer at YouTube. Her other interests include yoga, breakfast food, and planning her next vacation.

Member of: Business Casual (Current)

Don Barbour

A native of Columbus, Indiana, Barbour was a member of the vocal group The Four Freshmen. Formed in Indianapolis in 1948, their ballads include "Their Hearts Were Full Of Spring", "It Could Happen To You", "Route 66", "Day By Day", "The Day Isn't Long Enough", and "How Can I Tell Her". Barbour died in a car accident in Los Angeles at the age of 34.

Member of: Four Freshmen (Defunct) - Founder

Ross Barbour

Ross Edwin Barbour was an American singer with the vocal quartet The Four Freshmen.

The Four Freshmen originated in early 1948 when brothers Ross and Don Barbour, then at Butler University's Arthur Jordan Conservatory in Indianapolis, Indiana, formed a barbershop quartet called Hal's Harmonizers. The Harmonizers also included Marvin Pruitt - soon replaced by Ross and Don's cousin Bob Flanigan - and Hal Kratzsch (1925-70), replaced in 1953 by Ken Errair. The quartet soon adopted a more jazz-oriented repertoire and renamed itself the Toppers. At first, they were influenced by Glenn Miller's The Modernaires and Mel Torme's Mel-Tones, but soon developed their own style of improvised vocal harmony. In September 1948, the quartet went on the road as The Four Freshmen, and soon drew the admiration of jazz legends such as Dizzy Gillespie and Woody Herman.

Member of: Four Freshmen (Defunct) - Founder

Ysaye Barnwell

Ysaye M. Barnwell was born in New York City and has lived in Washington, D.C., for over 40 years. Her life experiences have taken her down three major paths. She began in music at the age of 2, studying violin for 15 years with her father and majoring in music in high school. She sang in a choir while in junior high school and then in college. In 1976, she founded the Jubilee Singers at All Souls Unitarian Church in Washington, D.C. It was, there in 1979, that Bernice Johnson Reagon witnessed her as a singer and a Sign Language interpreter and invited her to audition for Sweet Honey In The Rock.

Barnwell is also a Speech Pathologist with the Bachelors, Masters (SUNY, Geneseo 1963-68) and Ph.D. (University of Pittsburgh 1975) degrees and was a professor in the College of Dentistry for over a decade. In 1981 she completed post-doctoral work and earned the Master of Science in Public Health

Member of: Sweet Honey in the Rock (Former)

Nicholas Bearde

In addition to his high-profile role with Bobby McFerrin´s Voicestra - the innovative a cappella group of which Nicolas was a founding member - and SoVoSo, the artistic offshoot of Voicestra, with whom he´s toured and recorded since the mid-1990s, Bearde has worked steadily with an array of artists from Patti Austin, Michael Bolton and Janis Siegel to McFerrin, John Handy, Chris Camozzi, and his own outstanding group, the Right Groove.

Member of: SoVoSo (Founder) - Former

Sunshine Becker

Sunshine Becker (formerly Sunshine Garcia) is a singer, songwriter and vocal performance coach, who has been a 24 year member of thr critically acclaimed, National Harmony Sweepstakes champions SoVoSo.. After playing many dream venues from Shoreline to Radio City, she took her final bow with the Grateful Dead spin-off band of Phil Lesh and Bob Weir's called Furthur in January, 2015. Sunshine is currently working on a solo record, playing shows as Sunshine Garcia Band, and touring in New York in March, 2015 with a band she formed with former Primus & Ratdog drummer Jay Lane called Jay's Happy Sunshine Burger Joint. She continues to teach vocal performance and stays busy doing studio sessions. CircleSinging and improvising keep her young. She lives and breathes a cappella, infusing if into every performance and every day life. Her bassist husband and 5 year old son are the heart beart and back beat to her musical story.

Member of: SoVoSo (Current) - Founder

Nick Begbie

Nick grew up in a very musical family, however bucked the hereditary inclination for a while to graduate from The Australian National University (ANU) in 1994 with a Bachelor of Arts in Asian Studies (Japanese/Linguistics). His inescapable genes caught up with him again during his non-musical studies, however, and he's been a professional singer since before his graduation from the ANU.

A lack of formal musical education didn't slow him down, and he shortly thereafter (along with three friends from the Canberra School of Music's vocal jazz ensemble), co-founded what was to become Australia's most successful, most awarded, best-selling and longest-running contemporary a cappella groups ever.

Member of: Idea of North (Current) - Founder

Cheryl Bentyne

In 1979, Bentyne became the permanent replacement for singer Laurel Masse, who left the Manhattan Transfer after being injured in an automobile accident. Her first appearance was on the album Extensions (1979), which won the group its first Grammy Award, Best Jazz Fusion Performance for a vocalese version of the song "Birdland" by Weather Report. Bentyne won ten Grammy Awards with the Manhattan Transfer, including awards for her arrangement of "Another Night in Tunisia" with Bobby McFerrin and for writing the song "Sassy" for the album The Offbeat of Avenues

Member of: Manhattan Transfer (Current) - Founder

Tim Beutel

Tim Beutel started barbershopping in high school, when he formed a quartet inspired by the Gas House Gang. His quartet was together for several years, but they went their separate ways in college. Beginning at Bradley University as an engineering major, Tim soon found that his true passions lay in the music world, and he graduated with a degree in Music Education in 2009. He later finished a Masters degree in 2015. Tim now teaches choir and general music for the Morton, IL school district. Tim enjoys grilling out, sports, activities with his church, recording learning tracks, and mostly spending time with his family of four!

Member of: After Hours (Current) - Tenor

Joey Blake

Joey is one of the founding and current members of Voicestra, the a cappella ensemble created by Bobby McFerrin. He was also a founding member of Sovoso the group that spun from Voicestra. Joey has recorded & produced five albums for this group, ( Precious - a European release, Bridges and Seasonings for the US, as well as Crack the Nut and Then and Now). He also holds numerous arranging credits to his name, including his work with SoVoSo. His discography includes recordings with McFerrin (Medicine Music, CircleSongs), Kenny Loggins, Dianne Reeves, to name a few.

Joey is currently on the faculty of Berklee College of Music in Boston, as an Associate Professor in the Voice Department. He continues to tour with, Sung Deep, Back To The Band and Bobby McFerrin, while pursuing his solo work and teaching career.

Member of: SoVoSo (Former) - Founder

Clark Burroughs

Clark attended Loyola University and was in the men's glee club there for two years. He also joined "The Orchard Gables Repertory Theatre Group"in Hollywood and continued acting.Next stop was Los Angeles City College where Bob Florence was a fellow music student.

Clark was in two vocal groups during the same period of time, "The Clef Clan" and "The Twilighters." Most of the vocal groups had choreograpers at the time, through Tom Mahoney's referral Clark met Gene Puerling at a "Clef Clan "rehersal.

With Clark on lead, Bob and Bob on tenors, and Gene on bass, the Hi-Lo's fractured the traditional definition of vocal group structure with a tonal blend rarely equaled by any quartet.

Member of: Hi-Lo's (Defunct) - Baritone - Founder

Barry Carl

Barry Strauss Carl is an American voice-over actor and musician best known as the bass of the a cappella vocal band Rockapella while the group was house band on the PBS children's geography game show Where in the World Is Carmen Sandiego? (1991-1995). He was a member of Rockapella from 1988 until he left the group in 2002. Carl is known for his signature deep voice, which he used during his years with Rockapella to create an almost instrumental sounding bass. As a voice-over artist he has done hundreds of television and radio commercials for such companies as Taco Bell, Charmin, Mounds/Almond Joy, Doritos, and Volkswagen; promos for Syfy, Comedy Central, Nickelodeon, The Discovery Channel, and PBS; theatrical trailers; industrial narrations; books on tape; public service announcements; internet commercials; and voices for animated characters in anime, video games, and commercials.

Member of: Rockapella (Former) - Bass

Simon Carrington

In 1967 Simon Carrington co-founded co-founded at Cambridge University the internationally acclaimed British vocal ensemble The King's Singers, and was its Director for 25 years. He gave 3,000 performances at many of the world's most prestigious festivals and concert halls, made more than 70 recordings (for EMI), and appeared on countless television and radio programs including: Regular TV appearances worldwide, including Live at The Boston Pops, 1983; BBC TV series, The King's Singers Madrigal History Tour, 1984; On Stage at Wolftrap, PBS TV, USA, 1986; ABCTV (USA) The Sound of Christmas: Salzburg, 1987; nine appearances on the Tonight Show with the late Johnny Carson.

Member of: King's Singers (Former) - Baritone

Nitanju Bolade Casel

Nitanju Bolade Casel joined Sweet Honey in the Rock in 1985. Combining her roles as a dancer/choreographer/singer/songwriter/producer/wife/mother, she has also served the group for over 25 years in the position of Treasurer. The former Assistant Artistic Director of the Art of Black Dance & Music and Director of the Young Afrique Dance Company in Massachusetts, has taught in multiple dance centers, including Boston University, Roxbury Community College, Joy of Movement Center and more recently at Wesleyan University. She has volunteered with the National Association of Music Educators as a public service announcer, and donated the use of her composition, Run to Respond, Inc.

Member of: Sweet Honey in the Rock (Current)

Jacob Chamoun

Jacob started in a cappella in 2008 and never looked back. In addition to earth-rumbling bass, Jacob brings to the group goofy instrumental imitations and pretensions of music theory. In 2017 Jacob completed his PhD in applied physics at Stanford and now works in optical engineering. When he's not in the lab or at rehearsal, Jacob is an avid home cook.

Member of: Business Casual (Current)

Alvin Chea

Alvin "Vinnie" Chea, was born in San Francisco in 1967. A product of Christian Education, Chea attended Adventist schools exclusively, earning a Bachelor of Arts English & Communications Double-major from Oakwood University.

It was at Oakwood that he joined the band "Alliance." "Alliance" had formed while rehearsing in a campus restroom. After being discovered, Alliance went on to become Take 6, and soon skyrocketed to international fame.

They are now the most awarded Vocal group in Grammy History, winning 10 trophies and 24 nominations. During his 32-year music career, Chea has individually been featured as an Artist or Sideman in scores of Sound Recordings in virtually all genres. Additionally, he has appeared in hundreds of Film & TV Soundtracks. Alvin's Voice-Overs can be heard on TV & Radio covering everything from Movie Trailers to Video Games.

Member of: Take 6 (Current) - Bass

Bob Chilcott

Described by the Observer newspaper as "a contemporary hero of British choral music", Bob Chilcott has always been immersed in the choral tradition of his country. He sang as a chorister and choral scholar at King's College, Cambridge, and after singing professionally in London and also as a member of the vocal group the King's Singers for 12 years, he became a full-time composer in 1997. He has embraced his career with energy and commitment, not only producing a large catalogue of music for all types of choirs, but also working with singers and choirs in more than 30 countries.

Member of: King's Singers (Former) - Tenor King's Singers (Former) - Tenor

Jussi Chydenius

Jussi Chydenius is a Finnish composer who combines a traditional choral sound with influences from pop and jazz to create works that are fresh, vibrant, and accessible. His interest in popular musical styles stems from his experience as a drummer in various bands, including the platinum-selling rock group Don Huonot, and he is best known as the bass singer and composer in the a cappella sextet Rajaton. Chydenius has published a number of acclaimed choral works, which are performed by choirs and vocal ensembles throughout Europe and North America.

Member of: Rajaton (Current) - Bass - Founder

Stephen Connolly

From 1987 - 2010, Stephen sang Bass and co-directed the internationally acclaimed vocal ensemble The King's Singers. In addition to performing in excess of 120 concerts each year for almost a quarter of a century, he has made frequent appearances around the world. He has recorded extensively with EMI, BMG Records, Signum Records and Sony, collecting many awards - including three Grammy nominations and a Grammy.

Following his 23 years with The King's Singers, he spent 6 years as Head of Vocal Studies at The Cheltenham Ladies' College.

He is a regular guest in masterclasses at the Leipzig International A Cappella Festival and Competition, where he also often appears as President of the Jury. He is a regular adjudicator for the prestigious European Grand Prix competition for Choral Singing, as well as the BBC Choir of the Year competition in the UK.

Member of: King's Singers (Former) - Bass

Paul Cooper

James Paul Cooper was born near Chattanooga and grew up in Michigan, raised on gospel music and, as he said, "breast-fed on rhythm and blues." That rich history fuelled his career as a songwriter, singer, and founding father of the Canadian a cappella group, The Nylons.

Paul moved to Toronto in the late 1960s, dodging the U.S. Army draft; he wryly explained that he "was stationed in Canada during the Vietnam War." He worked as an actor in Toronto theatres, where we met in the summer of 1978 as cast members in a production of Oklahoma! Around this time, Paul and fellow thespian Marc Connors had been toying with the idea of forming a vocal group, to be called The Nylons, and in early 1979 the group took shape with the addition of Denis Simpson.

Member of: Nylons (Former) - Founder

Gabriel Crouch

Gabriel Crouch is Director of Choral Activities and Senior Lecturer in Music at Princeton University. He began his musical career as an eight-year-old in the choir of Westminster Abbey, where he performed a solo at the wedding of HRH Prince Andrew and Miss Sarah Ferguson. After completing a choral scholarship at Trinity College, Cambridge, he was offered a place in the renowned a cappella group The King's Singers in 1996.

In the next eight years he made a dozen recordings on the BMG label (including a Grammy nomination), and gave more than 900 performances in almost every major concert venue in the world. Special collaborative projects saw him working and performing with some of the world's most respected artists, including percussionist Evelyn Glennie, pianists Emanuel Ax and George Shearing, singer Barbara Hendricks and Bruce Johnston of the Beach Boys.

Member of: King's Singers (Former) - Baritone

Trist Ethan Curless

A native of Cheyenne, WY, Trist is no stranger to vocal harmonies! He attended the University of Northern Colorado, majoring in music education. In 1995, he co-founded the pop-jazz vocal group m-pact, with which Trist has performed in festivals and concert halls around the world. He's also written, arranged and produced many of the group's songs. www.m-pact.com

Trist can be found on the other side of the microphone as well, working as an audio engineer for several vocal groups and bands, including Straight No Chaser and Take 6.

When he's not performing and mixing, Trist also finds time to teach private voice and participate as a clinician and adjudicator in clinics and festivals worldwide.

Member of: Manhattan Transfer (Current)

Dr. Cedric Dent

Cedric Carl Dent, a native of Detroit, Michigan, was a baritone vocalist, music arranger, and co-producer of the 10-time GRAMMY Award-winning vocal group, TAKE 6. After 25 years, Dent retired from full-time performing and has been an emeritus member of the group since 2011. Dent is also a 2-time Grammy-nominated music arranger and contributed several arrangements for the Grammy-award winning recording Handel's Messiah A Soulful Celebration (1992). In 2014, Dent rejoined TAKE 6 for their induction into the Gospel Music Hall of Fame in Nashville, TN.

Member of: Take 6 (Former) - Baritone

Angie Doctor

Angie is a songwriter and arranger, vocal coach and clinician for school music ensembles and solo singers, background singer for groups such as The Manhattans, Heatwave, Gene Chandler, Barbara Lewis, Billy Paul, and many others, studio singer and voice-over talent, is the soprano in the jazz vocal quartet Clockwork, and was in the wackiest of all a cappella groups, The Bobs, for the last 6 years of their 36 year run. In addition, she has been singer and soloist for music projects with Bobby McFerrin, Sufjan Stevens, Sweet Honey in the Rock, John Zorn, Meredith Monk, performing at venues that include Zellerbach in Berkeley, Jazz at Lincoln Center, Carnegie Hall, and the Philharmonie Berlin. Her vocal work can be heard on many recording projects, including as a featured soloist on the Grammy-nominated recording of Leonard Bernstein's "Mass" (Harmonia Mundi), Clockwork's "Every Voice Counts", The Bobs "Biographies", and two albums full of jazz a cappella duets with Dan (Bob) Schumacher, "He Said, She Said: Duets For Two Voices" and "Two, Vol. 2", produced and arranged by Richard Bob Greene.

Member of: Bobs (Current) Clockwork (Current)

Len Dresslar

A longtime member of The Singers Unlimited, baritone Len Dresslar also earned fame via television commercials. As the inimitable voice of the Jolly Green Giant, he extolled the virtues of vegetables to multiple generations of viewers. Born Elmer Dresslar, Jr. in St. Francis, KS, in 1925, he served as in the U.S. Navy in World War II before studying voice at the Kansas City Conservatory of Music. After several years honing his acting skills in Midwest summer stock, Dresslar relocated to New York City, appearing on Broadway and joining the national touring company of South Pacific before settling in Chicago in 1953. There he joined the cast of CBS affiliate WBBM's live variety series In Town Tonight, which aired nightly between 1955 and 1960.

Member of: Singers Unlimited (Defunct) - Founder

Bryan Dyer

Bryan Dyer is a professional musician with almost 20 years of professional experience. He's a versatile multi-instrumentalist and vocalist who has performed many styles of music from classical and avant-garde to rock, jazz and blues. His talents are in a high demand as he performs with as many as 8 different groups at a time. Music has taken Bryan around the world to several different countries including Japan, Switzerland & Jamaica and alongside such artist as Al Green, Michael McDonald and Bonnie Raitt. Some of the groups he currently performs with include SoVoSo, Slammin All-Body Band, Chelle! and Friends, Rankin' Scroo & Ginger and Linda Tillery and the Cultural Heritage Choir.

Member of: SoVoSo (Current)

Anders Edenroth

Started playing piano and singing in choirs at an early age. From age ten to twenty he studied at Adolf Fredrik's School of Music in Stockholm that has a strong focus on choir singing. After that he continued his studies at The Royal Academy of Music in Stockholm for five years where he and his fellow-students formed an a-cappella quintet - The Real Group. The last two years, the studies were performed together with the other Real Group members on a specially designed post graduate course resulting in a diploma of the highest degree.

Anders Edenroth has written many original songs for The Real Group and arrangements of well known standards. He has been awarded grants from The Swedish National Council for Cultural Affairs and Swedish Performing Rights Society STIM several times.

Member of: Real Group (Current) - Founder

Peter Eldridge

Eldridge is a founding member of internationally acclaimed vocal group, New York Voices. The group continues to tour internationally and has performed in some of the world's most preeminent venues and festivals, including Carnegie Hall, Avery Fisher Hall, and the Kennedy Center, and has been involved in two Grammy-award winning projects with Paquito D'Rivera and the Count Basie Orchestra. New York Voices has completed two new collaborative albums to be released in 2018, one with the Bob Mintzer Big Band and the other with Brazilian singer/songwriter Ivan Lins and the Danish Radio Big Band. On the more contemporary side, Peter is also a member of the vocal group MOSS, alongside Kate McGarry, Theo Bleckmann, Lauren Kinhan and Luciana Souza (and now vocalist Jo Lawry).

Member of: New York Voices (Current) - Founder

Amy Engelhardt

From 1998-2011, AMY ENGELHARDT was the sole female vocalist/writer/arranger for Grammy-nominated, genre-busting legendary a cappella quartet The Bobs. A session and concert singer of everything from Bach to rock, Amy has shared the stage or studio with a wide range of artists from Barbra Streisand to "Weird" Al Yankovic. Last summer, Amy made her Off-Broadway debut as composer/lyricist of the rock musical BASTARD JONES ("Smartly plotted and irrepressible, with hummable pop music to match." - TimeOutNY ). Winner of the Burman Award for Songwriting from the Manhattan Association of Cabarets (MAC), Amy co-created and was Artistic Producer of TUNE IN TIME - New York's Musical Theater Game Show ("A hilarious romp!"- StageBuddy). When not musical theatre-ing it up in NYC or LA, Amy performs house concerts all over the country and coaches all levels and types of vocal ensembles.

Member of: Bobs (Former)

Joanna Goldsmith Eteson

Jo is currently a member of The Swingles based in London, UK. She studied voice at the Guildhall School of Music and Drama in London and discovered her love of ensemble singing during her time with the National Youth Choirs of Great Britain. Jo is also a session singer, providing vocals for several movie soundtracks including Harry Potter and The Deathly Hallows, The Hobbit, Wonder Woman, Beauty and the Beast, The Hunger Games, Fantastic Beasts and Where to Find Them and Jurassic World.

Jo is a lifelong fan of The Real Group and used to travel to college listening to "Jazz: Live", "Nothing but The Real Group" and "Commonly Unique"! Finally performing with them at the London A Cappella Festival in 2014 was a particular highlight for her, and it was an honour to be at the 2012 The Real Group Festival.

Member of: Swingle Singers (Current) - Soprano

Bob Flanigan

Robert Lee "Bob" Flanigan was an American tenor vocalist and founding member of The Four Freshmen, a jazz vocal group.

The Four Freshmen originated in early 1948 when brothers Ross and Don Barbour, then at Butler University's Arthur Jordan Conservatory in Indianapolis, Indiana, formed a barbershop quartet called Hal's Harmonizers. Flanigan was a cousin of the Barbours and joined The Harmonizers beginning on September 20, 1948, becoming their lead vocalist. He also played trombone and double bass.

Member of: Four Freshmen (Defunct) - Founder

Anton Forsberg

Although born in Stockholm, the smaller town of Norrkoping was where Anton spent most of his early years. From being handed a trumpet in the crib, his whole upbringing was pervaded by music - exploring a variety of different instruments, genres and styles. The introduction of jazz music in his life came from his grandfather, who recognized that the records he played in his car made Anton instinctively react with interest and excitement. Among the artists that especially caught Anton's attention were Louis Armstrong, Billie Holiday, John Coltrane along with The Real Group. Always amazed by the musical and emotional power of the voice as a musical tool, the music of The Real Group has been a part of his life from his very early days.

Member of: Real Group (Current)

Tim Foust

5 octaves. What more needs to be said?

I suppose we could mention that he's an award-winning songwriter. And arranger. Or the fact that he's a visual artist, a writer, and a comedian who dazzles audiences with his wit as much as his voice.

And yes, his voice does stun fans and critics alike. He showcases his jaw-dropping range with amazing versatility and dexterity. From rumbling, grooving vocal bass lines to country crooning to soaring pop leads, Tim does it all.

His solo album, The Best That I Could Do, which was written and recorded at Flying Pig Productions in Orange County, California, was met with rave reviews. It features Tim's signature humor as well as poignant lyrics and of course stellar vocals.

Member of: Home Free (Current) - Bass - Founder

Mitch Grassi

Mitch is the youngest member of Pentatonix and a recent high school graduate (he was a high school senior when taping of The Sing-Off commenced). In addition to immersing himself in music theater in Arlington, TX, Mitch's music tastes skew heavily toward underground club and electronic music. A veteran of many vocal and talent competitions, Mitch took first place at the Teen Talent Follies for his rendition of Scott Alan's "Kiss the Air." Mitch is honing his skills in production and DJ-ing while excelling as a lead vocalist for Pentatonix.

Member of: Pentatonix (Current) - Founder

Cassie Greene

As the child of two music teachers, Cassie has always been immersed in music and theater. Cassie is an R&D scientist at a Bay Area biotech company. She spends her extra time baking and cleaning up after her husband, Jacob (yes, they are an aca-couple!). Cassie and Jacob met in their college a cappella group at Cornell University, The Class Notes.

Member of: Business Casual (Current)

Richard Greene

Richard Bob Greene is an award-winning composer, arranger, singer, writer and producer. As the co-founder and creator of the nu-wave a Cappella super group The Bobs, Greene fractured and reconstructed the rules for popular music. He was nominated for a Grammy for his and Gunnar Madsen's a Cappella arrangement of the Beatles "Helter Skelter". As a composer and songwriter/librettist, Greene has received commissions from Lincoln Center, the Los Angeles Theater Center, the Minnesota Opera, Oberlin Dance Collective, ISO Dance Theater, National Public Radio and many others.

Member of: Bobs (Current) - Bass - Founder

Tim Hauser

Even from the very beginning, Tim Hauser has had an interest in music and singing. He once asked his mother how long he had been singing, and she said, "As long as I can remember." For the founder of The Manhattan Transfer, the love he has for music has been apparent throughout his career.

In 1969, he formed the first version of The Manhattan Transfer with Gene Pistilli, Marty Nelson, Erin Dickins and Pat Rosalia. The group had a country/R&B sound. Together they recorded one album, Jukin', on the Capitol label. However, they differed in ideas on direction: Pistilli leaned more toward a country-western, "Memphis" R&B sound, whereas Tim was interested in a jazz/swing sound. The group dissolved in the early 70's.

Member of: Manhattan Transfer (Former) - Founder

Jimmy Hayes

Jimmy Hayes was a founding member of the original group in 1962, along with lead singer/arranger Jerry Lawson and tenor Joseph "Sweet Joe" Russell. Tenor Jayotis Washington and baritone Toubo Rhoad were the other original members. Rhoad died from a stroke while on the road with the group in 1988, Russell in 2012 after a long battle with kidney disease. Washington continues with a group of singers using the Persuasions name, and Lawson is pursuing a solo career.

Member of: Persuasions (Former) - Founder

Jon Hendricks

John Carl Hendricks, known professionally as Jon Hendricks, was an American jazz lyricist and singer. He is one of the originators of vocalese, which adds lyrics to existing instrumental songs and replaces many instruments with vocalists, such as the big-band arrangements of Duke Ellington and Count Basie. He is considered one of the best practitioners of scat singing, which involves vocal jazz soloing. Jazz critic and historian Leonard Feather called him the "Poet Laureate of Jazz", while Time dubbed him the "James Joyce of Jive". Al Jarreau called him "pound-for-pound the best jazz singer on the planet - maybe that's ever been".

Member of: Lambert, Hendricks and Ross (Defunct) - Founder

Katarina Henryson

Singing has been her chosen means of expression ever since her early schooling at Adolf Fredrik´s Music school, through her training at the Stockholm Royal Academy of Music and during the 1990´s when she was active as studio and backing vocalist in the fields of pop and soul.

Since 1984, as one of the founding members of the vocal group The Real Group, Katarina has contributed to a unique ensemble. Her flexible alto and distinctive stage presence make her a cornerstone in the group, whose numerous recordings and countless international appearances have made it a Scandinavia model in the field of vocal music.

Member of: Real Group (Former) - Founder

Christopher Dylan Herbert

American baritone Christopher Dylan Herbert performs concerts and opera throughout the world, frequently with his twice GRAMMY-nominated ensemble, New York Polyphony.

Hailed by Opera News for his "exceptional" singing, Christopher has also received acclaim for his "smooth baritone voice", his "consistently warm sound" and his "versatile dramatic abilities". He is a recipient of awards from the Sullivan Foundation and Gerard Souzay Competition and he was a 2014 Naumburg Competition semifinalist. His outdoor Winterize/Winterreise project with Make Music New York is described by The New York Times as "brave and, in all senses, chilling... an elegantly lean performance that would have been impressive in any context but was remarkable under these conditions."

Member of: New York Polyphony (Current) - Baritone

Bonnie Herman

Bonnie Herman was the singer of the original "Like a Good Neighbor, State Farm Is There" commercial jingle, which ran for several years. She is the daughter of Lawrence Welk original Champagne Lady Lois Best and Jules Herman, who was a trumpeter in the Welk orchestra. She is the niece of big band leader Woody Herman. Bonnie was the soprano in the Singers Unlimited.

Member of: Singers Unlimited (Defunct) - Soprano - Founder

Peter Hollens

Peter Hollens is an American entrepreneur, educator, and is best known as a classically trained vocal artist specializing in a cappella music on Youtube and Facebook. With over 5 million followers and subscribers on his content and over a billion total views since 2011. Hollens has collaborated and performed with several outstanding artists including David Archuleta, Brian Wilson, Jason Mraz, Hunter Hayes, Gladys Knight, Lindsey Stirling, George Watsky, Jackie Evancho, and ThePianoGuys.

Gavin Hope

Gavin has a diverse experience though song, stage, film, and TV throughout his career. He started his musical journey through many ensembles and choirs in school and University, and eventually ended up being the youngest member in Calgary Opera Chorus history. Gavin was also a member of Alberta pop group The EarthTones, recording an album with that group and touring Western Canada. In his late teens, he was asked to sing back up for Michael Bolton for his Time Love and Tenderness tour, and after moving back to Toronto to pursue music even more, Gavin was fortunate to become the newest and youngest ( ever ) member of Canadian Pop A Cappella institution The Nylons at the tender age of 20.

Over the next few years, Gavin was heard on four Nylons albums, and was touring locales such as Brazil, China, and Europe, as well as all over North America. Gavin's voice as lead on the single "Love TKO" on the album "Because", got the band a Juno Nomination for best R&B Recording.

Member of: Nylons (Current) - Baritone

Scott Hoying

Scott is a songwriter and pianist who has been performing since the age of 8. Following his graduation from Martin High School in Arlington, TX, Scott enrolled at USC where he joined the SoCal VoCals, a popular and accomplished campus a cappella group. Involved with a variety of musical projects, Scott has been a finalist on CBS' Star Search and has performed the National Anthem and "God Bless America" at numerous professional and collegiate sporting events, including home games for the Texas Rangers, Dallas Cowboys and Dallas Mavericks.

Member of: Pentatonix (Current) - Founder

Tobias Hug

A vocal whizzkid, explorer of the human voice, compassionate and inspiring teacher, consummate performer - Tobias Hug has been teaching, singing and jamming around the world for the past 15 years Based in London, Tobias has been one of the longest-serving members of Grammy-Award winning a cappella legends The Swingle Singers which he left in 2012.

As their bass and vocal percussionist he has sung with them for over 11 years, recorded six studio albums, and performed more than 700 concerts in the world's greatest concert halls (from Teatro alla Scala to the Kremlin Palace), with the great orchestras (from the Vienna Philharmonic to the Boston Pops) and great artists (from Zubin Mehta to Jamie Cullum).

Member of: Swingle Singers (Former) - Bass

Alastair Hume

"I was a monumentally unpromising boy treble, and was also described by Sir David Willcocks as the worst alto he'd ever had in his choir (King's, Cambridge), two sure-fire preconditions for making a career in music. The decision to go down the musical path and not make further use of my law degree was, I'm sure, greeted with a collective sigh of relief by the legal profession; what sort of sigh the music profession sighed at that decision is, at the moment, unknown but probably huge and horrified.

"After twenty-five years on the road with The King's Singers, and even more years on the fiddle as a bass player, the business of music-making at the highest level that seemed so important at the time (as indeed it was then) has yielded a rich harvest of irony, humour, downright silliness and huge enjoyment at having been a part of all that.

Member of: King's Singers (Former) - Countertenor

David Hurley

The English counter-tenor, David Hurley, began his singing as a chorister at Winchester Cathedral. At the age of 14 he started using his falsetto in his school choir, and his fragile counter-tenor won him choral scholarship to New College, Oxford, which he inhabited for three years from 1981 until 1984.

Armed with a degree in geography David Hurley began his life as a freelance singer, specialising in higher falsetto parts with groups such as the Gabrieli Consort. The opportunity to audition with The King's Singers came in 1989, and he joined the line-up in February 1990.

In his free time David Hurley enjoys cooking, reading, sailing and doing sudokus; some of these things being more easily done on tour than others. He lives with his wife, Sarah, in the county of West Sussex near the coast, and near his small sailing boat.

Member of: King's Singers (Former) - Countertenor