A capella version of 'Little Drummer Boy' garners over 13 million views on YouTube
(-VIDEO ONLY-) With Christmas around the corner, the Holiday season is in full swing. Just in time, American group Pentatonix has launched their latest video on YouTube. It's a spectacular a capella version of ;the 'Little Drummer Boy.' The video showcases their amazing voices, leaving aside any musical instruments. In just a week, they've tallied over 13 million views.