1. Pentatonix Working On Christmas EP, Four-Month Tour In 2013

    September 26, 2012 2:22 PM EDT Pentatonix, the a cappella quintet that won the third season of NBC's "The Sing-off" and then went top 20 with their debut EP, has a Christmas EP and a January-to-April tour in the works. Making their Los Angeles debut at a sold-out ...