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Krysten Ritter

LAS VEGAS, NV - DECEMBER 15: Actress Krysten Ritter arrives at The Bank Nightclub at the Bellagio to celebrate her birthday on December 15, 2012 in Las Vegas, Nevada. Ritter turns 31 on December 16. (Photo by Jeff R. Bottari/Getty Images)

What Were They Thinking?!

This week's worst-dressed crew includes Demi Lovato, Lindsay Lohan, and Judge Judy. -- By Matt Whitfield, Yahoo! Staff