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Katy Perry

WASHINGTON, DC - JANUARY 19: Recording artist Katy Perry performs during the 2013 Kids' Inaugural: Our Children, Our Future on January 19, 2013 in Washington, United States. (Photo by Bennett Raglin/WireImage)

What Were They Thinking?!

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