Pentatonix’s Cover of ‘Where Are You Now’ is Pretty Fantastic

Pentatonix is most recognized as probably the most successful a cappella group, with Grammys and tons of hits. It's pretty impressive. They have covered tons of groups, including Daft Punk, and were in Pitch Perfect 2. They just released an impressive version of Jack U featuring Jusin Beiber's "Where Are You Now."  Watch below.