The self-described "world's first country a capella vocal band", Home Free, consists of five male singers, including tenors Austin Brown and Rob Lundquist, baritone Chris Rupp, bass Tim Foust and Adam Rupp with vocal percussion. Hailing from Minneapolis, the band reached fame as the winners of NBC's fourth season of "The Sing Off" in 2013. Brothers Adam and Chris Rupp founded the group in the early 2000s. Today, they're signed to Columbia Records and are playing shows regularly, with many of their tour dates even selling out. The group's talent is undeniable, which you'll quickly realize upon listening to their rendition of the classic Christmas carol "Angels We Have Heard On High".