Montag lunches with her Hills costars in Beverly Hills. Plus: Beyoncé & Alicia Keys, Britney Spears, Kristen Stewart and more
Credit: Splash News Online
Published: Thursday Mar 18, 2010 | 05:00 PM EDT
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Mary-Kate Olsen caps off her look with a stylish top hat and matching black sunglasses after leaving her New York City apartment on Wednesday.
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