NBC has tapped an eclectic group of musicians to star in a new reality-competition show, 'Clash of the Choirs.' Patti LaBelle, Nick Lachey, Blake Shelton, Kelly Rowland and Michael Bolton will try to create "America's greatest choir" on the live show, each of them picking 20 singers from their respective hometowns to join their team. LaBelle will return to her hometown of Philadelphia for auditions; Lachey will be going home to Cincinatti; Shelton will return to Oklahoma City; Rowland will audition in her native Houston; and Bolton will be going back to his hometown of New Haven, CT.

Cameras will follow the artists from the hometown auditions through the choir competition in New York. Viewers will be able to call in to vote for their favorite choir, and the winners will get to choose a prize that will benefit their city -- anything from renovating a school gym to building a community playground. 'Clash of the Choirs' is set to air live over four nights, December 17-20.

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