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Jewel has been added to the judges' panel of NBC's "The Sing-Off."  On Tuesday, the singer-songwriter tweeted the news. saying she's excited and honored to be joining the show. 

The four-time Grammy nominee has been tapped to join Boyz II Men's Shawn Stockman and pop singer Ben Folds as a judge on the show, while 98 Degrees singer Nick Lachey will be returning as the host. 

"The Sing-Off" - featuring the country's top a cappella groups - will be returning in its original format as a multi-night special holiday program later this year.  NBC had tried to make the show a weekly series in 2011, but the program couldn't draw an audience. 

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