The Sing Off Christmas - Opening Performance (Nota/Committed/Pentatonix)

Well it's a special sing off christmas with the majority of the popular groups returning to perform special christmas songs with groups from all 3 seasons! I thought this was a good opening performance, it's good to see all the winners sing together as one even though it kind of sucks with the lack of girls lol. but the brown haired guy's voice from pentatonix sounded off in this...