Lohan strikes a sexy pose on the set of a photo shoot in the Hollywood Hills. Plus: Kim Kardashian, John Mayer, Rihanna and more


She has her own mini-me! Katy Perry celebrates the launch of her new music video, "Waking Up in Vegas," with a look-a-like admirer – and ex boyfriend Travis McCoy (not pictured) – during a bash Wednesday at Mr. West in New York.

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