Meester shakes and shimmies her way into the Metropolitan Opera in New York. Plus: Mariah Carey, Gwyneth & Robert Downey, Jr., Patrick Dempsey and more

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YELLOW FEVER

Her show Gossip Girl returned Monday, but Leighton Meester wasn't staying home to watch it. Instead, the actress makes a dramatic entrance at opening night of La Fille Du Régiment at the Metropolitan Opera in New York.

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