The singer pitches in to help fight hunger at the Show Your Helping Hand launch event in N.Y.C. Plus: Robert Pattinson, Kendra Wilkinson, Megan Fox and more


Meanwhile, Transformers: Revenge of the Fallen star Megan Fox, in a draped Kaufman Franco gown, manages to look simultaneously glam and goofy while hanging with Shia LaBeouf at their Los Angeles Film Festival movie premiere in Westwood, Calif. "He's a brilliant actor," Fox raved to PEOPLE about her costar. "I just enjoy him as a person. He's a good boy!"