Katy Perry in a blue dress

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Katy Perry in a blue dress

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Katy Perry on red carpet

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Katy Perry and Kate Hudson at event

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Katy Perry at a promotional event

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Katy Perry in blue dress

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Katy Perry on red carpet

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Katy Perry and Gwen Stefani at event

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Katy Perry at American Music Awards

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Katy Perry on red carpet

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Katy Perry at the 2010 AMAs

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Katy Perry at VMAs

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Katy Perry at MTV Awards

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Katy Perry at an awards event

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Katy Perry at MTV Awards

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Katy Perry with blue hair

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Katy Perry in three different looks

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Katy Perry at MTV Awards

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Katy Perry at Kids' Choice Awards

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Katy Perry at a movie premiere

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