Natasha Bedingfield and Ryan Tedder are also to serve on the panel for the show, which is to premiere on the cable network May 30.
Recording star Jewel is the series' host and songwriter Kara DioGuardi is the show's head judge.
"Platinum Hit" follows 12 up-and-coming musicians as they battle through a series of songwriting challenges testing their creativity, patience and drive, Bravo said in a synopsis.
The winner will walk away with a $100,000 cash prize, publishing deal with Sony and a recording deal with RCA/Jive.
Celebrity Couples of 2014 [PHOTOS]