This A Cappella Version of ‘Little Drummer Boy’ Is Going Viral [VIDEO]

Pentatonix is an a cappella group featuring five quality singers. When you hear these talented people do their version of "Little Drummer Boy" you'll swear there is actually a ‘drummer’ playing somewhere. Nope, just the voices of Pentatonix, no instruments at all.

If you've never really liked this song, this should change your mind.

[The Blaze]