Katy Perry through the years

Singer-songwriter Katy Perry performs on July 28, 2016,
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Singer-songwriter Katy Perry performs on July 28, 2016, during the final day of the Democratic National Convention in Philadelphia. Perry stars in a new video posted by Funny or Die on Sept. 27, 2016, in which she encourages people to get out and vote, no matter what they're wearing. (Credit: AP / J. Scott Applewhite)

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Rainbow Brite's musical sister, Katy Perry, first made a mark as the popster behind 2008's "I Kissed a Girl." Currently, she's on her "Prismatic" tour.

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