Olsen turns out for a rockin' rooftop party in New York City. Plus: Gwen Stefani, Prince Harry, Shannen Doherty and more

VESTED INTEREST

Madonna makes a wild and woolly fashion statement after working out Thursday at a London gym. Earlier this week, the singer (whose Sticky and Sweet tour continues through Europe) accompanied husband Guy Ritchie to the premiere of his crime caper Rocknrolla.