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

RAISE THE ROOF

Mary-Kate Olsen is game for a night of music and fashion, scoping out the scene during a Dazed & Confused magazine party at MINI Rooftop, a loft space in New York City, on Thursday. The bash also featured a concert by indie rockers MGMT.