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WESTWOOD, CA - JULY 28: Actress/Singer Katy Perry attends the premiere of Columbia Pictures' 'Smurfs 2' at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Jason Merritt/Getty Images)

Fab Celeb Fashions (week of 7/29/2013)

Kate Hudson, Mayim Bialik, and Britney Spears dress to impress! -- By Matt Whitfield