Kristen Bell, the woman behind the voice of "Gossip Girl," is joining the cast of "Burlesque" as Christina Aguilera's rival, according to The Hollywood Reporter.
Christina will play a small-town girl who comes into her own in the club Cher's character runs.
Kristin will star as Nikki, which The Hollywood Reporter described as a "loose-cannon lead dancer," who loses the plot when Christina's character becomes the center of attention.
The film begins shooting on November 9, but won't be out until November 2010.
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