Katy Perry in black outfit

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Katy Perry in black outfit

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Katy Perry in pink outfit

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Katy Perry in black outfit

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Katy Perry in black outfit

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Katy Perry in Hello Kitty outfit

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Lady Gaga in bold outfit

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Avril Lavigne in black outfit

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Avril Lavigne in black outfit

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Lady Gaga in black outfit

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Katy Perry in black outfit

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Katy Perry performing on stage

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