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Carrie Underwood

NASHVILLE, TN - JANUARY 22: Carrie Underwood Attends theNashville GRAMMY Nominee Party at the Loews Vanderbilt Hotel on January 22, 2013 in Nashville, Tennessee. (Photo by Ed Rode/WireImage for NARAS)

What Were They Thinking?!

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