It's been almost two years since The Sing-Off last serenaded viewers, but the a cappella competition is back and hotter than ever!
In this exclusive sneak peek from Season 4 (Dec. 9, 9/8c), one of the groups blows the judges -- including new addition Jewel -- away with a cover of Johnny Cash's classic "Ring of Fire."
"Y'all blow the roof off of this," judge Shawn Stockman tells one of the groups. To get scoop on the new season and see which holiday favorite will get the a cappella treatment, check out the exclusive sneak peek below:
The Sing-Off premieres on Monday, Dec. 9 at 9/8c on NBC. Are you excited for the show's return?
View original Exclusive Sneak Peek: The Sing-Off's New Season Is on "Fire" at TVGuide.com
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