Hayek helps Baldwin get the party started on the Brooklyn, N.Y., set of 30 Rock. Plus: Charlize Theron, Joe Jonas, Gisele and more

MUSICAL MANIA

Ashley Tisdale takes a break from promoting High School Musical 3: Senior Year to enjoy a night out with boyfriend Jared Murillo Wednesday, leaving London's Apollo Theatre, where the pair checked out Josh Hartnett in Rain Man.