We can't believe it's been FIVE YEARS since we released the music video for "Mary, Did You Know?" on YouTube! Watch as Mitch shares his favorite memory from the music video. https://smarturl.it/PTXMDYK #TheBestofPTXChristmas | Pentatonix

The covers. The harmonies. The beat boxes. #Pentatonix's pitch perfect drops have ushered in worldwide acclaim for all things a cappella, and left us with viral covers spanning Beyoncé's digital drop and Christmas classics like we've never heard. But can the quintet's musical chops best the Internet's favorite game? Tune in to our latest episode of #SongAssociation to see how Scott, Mitch, Kirstin, Kevin, and Matt fare! | ELLE Magazine (US)