Amazing A Cappella Group Sings ‘The Little Drummer Boy’ [VIDEO]

Just when you think you've heard every version of every Christmas song out there - along comes a group like Pentatonix.

This amazing a cappella group sings 'The Little Drummer Boy' with feeling, amazing vocals, and a really cool rendition that is all their own.

Check it out and let us know if you like it or not in the comments below!