Katy Perry in blue and pink outfit

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Katy Perry promotional image

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Katy Perry with Homer Simpson puppet

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Katy Perry in plaid skirt

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Katy Perry in plaid skirt

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Katy Perry in green dress

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Katy Perry in purple wig

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Katy Perry performing on stage

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Katy Perry promotional image

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Katy Perry in black outfit

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Katy Perry in purple hair

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Lady Gaga in red outfit

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Britney Spears in red top

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Katy Perry with heart lollipop

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Katy Perry at MTV event

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Katy Perry promotional image

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Katy Perry in pink dress

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Katy Perry promotional image

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Katy Perry in purple outfit

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Katy Perry at MTV Awards

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