Rosie, dressed in a black sweetheart dress, picked up the Female Star of Tomorrow award even though she's not actually been in a movie yet with Trainsformers 3 not set for release until summer.
No ID for Rosie's dress at the moment but you can get a similar look to hers with the Lauren by Ralph Lauren "Emmie" dress, costing $190.00.
Pics from Bauer Griffin and Bloomingdales
