This popular, high-energy concert showcases professional, local high school and nationally lauded collegiate a cappella groups. Headliners VoicePlay and Vocal Rush (two-time national champion) were both on network television’s ‘The Sing-Off.’ The collegiate groups include Vocal Motion and Naked Voices (UC Santa Barbara), Deviant Voices (UCLA), Cloud 9 (UCSC) and the ever-popular Men’s Octet (UC Berkeley), while local Napa Valley groups set to perform include the Vocal Music Workshop (Napa High), Vocalettes (Vintage High) and PDA (American Canyon High).