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Katy Perry
LOS ANGELES, CA - OCTOBER 25: Singer Katy Perry attends CFDA/Vogue Fashion Fund Event hosted by Lisa Love and Mark Holgate at Chateau Marmont on October 25, 2012 in Los Angeles, California. (Photo by Donato Sardella/WireImage)

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November 2, 2012

This week's best-dressed crew includes Michelle Pfeiffer, Gwyneth Paltrow, and Sarah Jessica Parker. -- By Matt Whitfield, Yahoo! Staff