The Sing-Off - Season 4 - Sneak Peek - Video

The Sing-Off is returning just in time for the holiday season! What a gift for viewers. The highly anticipated fourth season of the competition series will see the addition of Jewel as a celebrity judge. I love this show. It brought us some amazing acts and groups including Pentatonix.

In the latest sneak peek promo of the new season, one group wows the judges with an a cappella cover of "Ring of Fire" by Johnny Cash.

The Sing-Off returns with the season 4 premiere on Monday, December 9th after The Voice.

Watch the video: