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Kate Bosworth

PARK CITY, UT - JANUARY 23: Actress Kate Bosworth attends the "A.C.O.D." Premiere during the 2013 Sundance Film Festival at Eccles Center Theatre on January 23, 2013 in Park City, Utah. (Photo by C Flanigan/FilmMagic)

What Were They Thinking?!

This week's worst-dressed crew includes Willow Smith, Kate Bosworth, and Kanye West. -- By Matt Whitfield