They are blowing it up!

An act with one of the hottest videos on YouTube will be kicking off the Bermuda Festival.

Pentatonix music video rendition of The Little Drummer Boy, has 8.8 million views in just one week. The a cappella music group posted it on YouTube on November 25 and it has become a sensation as many people are sharing it on Facebook and Twitter.

Hundreds of news stories have been written about how quickly the video has gone viral.

Pentatonix is playing at the Fairmont Southampton on Thursday, January 16 and Saturday, January 18 as the opening event for the six weeks of the Bermuda Festival.

They were the winners of NBC's The Sing Off in 2011.

The group is from Arlington, Texas, and features: Scott Hoying, Kirstie Maldonado, Mitch Grassi, Avi Kaplan and Kevin Olusola.

Click here to see more on the Bermuda Festival 2014.