They’ve become one of the world’s most sophisticated, lasting and imitated vocal groups around today. You’d be hard-pressed to find a more influential group out there in this new era of movies like “Pitch Perfect,” network television a cappella shows and innumerable college vocal groups that own the corner of cool on campuses everywhere.

As one of the progenitors of the astonishing full band sound of “contemporary” a cappella, Rockapella has shown audiences the raw power of pure vocal talent and originality. “There’s nothing in the way between us and the audience; it’s very human music,” says Jeff Thacher, Rockapella’s human beatbox.

Opening Act: Napa High’s Vocal Music Workshop!