Christina Aguilera is svelt (again), back in the studio, and has now announced that she will be making her big-screen debut, in 2010, for raunchy musical, Burlesque. But the heavyweight warbler isn't the only hot blonde in the spotlight. Forgetting Sarah Marsahll star and FHM covergirl, Kristen Bell (below), will co-star as Christina's rival at a burlesque club in Hollywood (owned by Cher!) Expect hot naked catfights, a flurry of tousled blond hair, red nails clawing at sequined bras and panties.  This is going to be awesome.

The latest update is that Dancing with the Stars pro Julianne Hough (below) will also star as a fellow burlesque dancer in a troupe of unreal hotties that will blow your mind. We're just waiting for the news that Kate Hudson is set to make a special appearance as Kristen Bell's hot older sister and Scarlett Johansson will play Christina Aguilera's tempestuous lesbian lover.  Ahh... we can only dream.