If you love a capella music,  you're going to go CRAZY with this wonderful holiday classic performed by Pentatonix.  Pentatonix is made up of five members, and since their Little Drummer Boy video posted back on November 25th, the song has enjoyed approximately 7 million views!  7 Million!  Watch the video here, and you'll see why.  If you want more of Pentatonix, you can download their Christmas album from itunes.  Enjoy!  :-)