VIDEO: Watch Pentatonix Perform Leonard Cohen Classic 'Hallelujah'

Pentatonix have released the video of their moving performance of late Leonard Cohen's classic"Hallelujah" from A Pentatonix Christmas Special, which aired on NBC on December 14th. Check it out below!

"A Pentatonix Christmas Special" celebrated the holiday season with a one-hour television event where viewers enjoyed the Grammy Award-winning musical phenomenon Pentatonix performing an array of classic holiday tracks as well as modern favorites. Taking part in the fun was superstar Reba McEntire, Grammy Award winner Kelly Clarkson and more!

In just five years, Pentatonix has sold more than 3.5 million albums in the U.S. alone. They have won 2 GRAMMY AWARDS and performed for hundreds of thousands of fans at their sold-out shows across the globe. Their Youtube channel boasts more than 11 million subscribers, yielding nearly 2 billion video views, and their 2015 self-titled album has been certified gold after debuting #1 on Billboard's Top 200. All 7 Pentatonix album releases have debuted in the chart's Top 10. In 2015 the group released its first tour documentary - On My Way Home - and appeared in the feature film Pitch Perfect 2.

On October 21st, Pentatonix released their third holiday album - A Pentatonix Christmas - which debuted at #3 on the Billboard Top 200 Chart. The album includes the group's arrangement of the Leonard Cohen classic, "Hallelujah," which debuted at #6 on Billboard's Top Digital Songs Chart. The music video received more than 20 million views in its first week. A Pentatonix Christmas follows 2014's That's Christmas To Me, which has been certified 2x platinum and includes the quintet's Grammy Award winning arrangement for "Dance of the Sugar Plum Fairy." Pentatonix is currently on the final leg of their 2016 World Tour.

Photo by: Tyler Golden/NBC