Kelso: The anti-a-cappella group! Six performers have been brought together by a secret organization to take over the a cappella world. These are hand-picked masters of the vibrant music scene of New York City -- a jazz bassist, a techno beatboxer, a rock wailer, a musical theater lead, an R&B soul singer, a smooth cabaret soprano. When their powers of auditory finesse combine, they unite to bring awesome sound to the masses. The organization dubbed their creation Kelso, in honor of a thoroughbred racing horse whose statue graces the band's secret headquarters.