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Kristen Stewart

THE TONIGHT SHOW WITH JAY LENO Tonight Show with Jay Leno -- Episode 4346 -- Pictured: Actress Kristen Stewart arrives on November 5, 2012 -- (Photo by: Paul Drinkwater/NBC/NBCU Photo Bank)

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January 1, 1970

This week's best-dressed crew includes Nicole Richie, Cameron Diaz, and Kristen Stewart. -- By Matt Whitfield, Yahoo! Staff