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Kim Kardashian, Katy Perry, Lady Gaga & more of this week's best & worst celeb style

From red carpet events to premiere parties, celebs were out in full force this week looking hot, and in some cases, not so hot. From Kim Kardashian's super sexy outfits to Katy Perry's metallic dress, we've rounded up all of this week's best and worst celeb looks.

Click through the gallery above to check out the best and worst of this week's celeb style!

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