Watch The World's Most Popular A Cappella Group Cover Fleet Foxes In The Woods

Pentatonix is an insanely popular a capella group from Texas who catapulted to fame after appearing on NBC’s talent show The Sing-Off. They usually stick to covering pop songs, but for their new Christmas album, they’ve taken on Fleet Foxes’ “White Winter Hymnal,” which I guess is a Christmas song because it has to do