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

FASHIONABLE FACE-OFF

It's good to be Ms. Tyra! The America's Next Top Model host celebrates being a Harper's Bazaar cover girl at a New York City bash on Wednesday, the same day her show returned for its 11th cycle.