An a cappella supergroup? Sounds paradoxical, absurd, perhaps even dangerous; indeed, The GrooveBarbers is all these things. Each member of this all-vocal powerhouse quartet is a bona fide star in his own right: Sean Altman, Charlie Evett and Steve Keyes are former members of the pioneering contemporary a cappella group Rockapella, and Kevin Weist is a renowned bald vocal guru. Collectively they have established themselves as the "go to" vocal group for rock, doo-wop, jazz and even (no way!) barbershop! The GrooveBarbers were featured in not one but two national TV commercials as The Astelins, the deliriously suave vocal group that offers Astelin nasal spray to seasonal allergy sufferers.