Perry pays tribute to Britney Spears with Riff Raff at the MTV Video Music Awards on Aug. 24, 2014.
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Perry looks like Grandma’s drapes at a pre-Grammy event on Jan. 27, 2014, in Los Angeles.
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A somewhat culturally confused Perry performs at the American Music Awards on Nov. 24, 2013.
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Perry performs at the MTV Video Music Awards on Aug. 25, 2013.
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Perry takes a walk on the wild side at the MTV Video Music Awards on Aug. 25, 2013.
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Perry tries to combine promotion for her Killer Queen fragrance and the punk theme at the Met Gala on May 6, 2013, in New York.
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Perry hangs out at a Coachella party on April 13, 2013, in Thermal, Calif.
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Perry goes flapper-chic on June 12, 2012.
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Perry goes goth at the NARM Music Biz Awards on May 10, 2012.
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Perry salutes Paul McCartney with petals on Feb. 10, 2012, in Los Angeles.
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At the London premiere of “Katy Perry: Part of Me” on July 3, 2012.
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Perry gets ready to get slimed at the Nickelodeon Kids’ Choice Awards on March 31, 2012.
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Perry makes a series of quick changes at the MTV Video Music Awards on Aug. 28, 2011.
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Perry goes rockabilly on Nov. 6, 2011, at the MTV Europe Music Awards in Belfast, Northern Ireland.
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Perry is heavenly at the Grammys on Feb. 13, 2011.
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Katy Perry lights up the room on May 3, 2010, at the Met Gala in New York, and on Nov. 7, 2014, in Perth, Australia.
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Perry channels rival Lady Gaga on Nov. 30, 2010, at the Grammy nominations concert in Los Angeles.
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Perry tries competing with model cleavage at the Victoria’s Secret Fashion Show on Nov. 10, 2010.
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Perry is a hot ticket on Nov. 7, 2010, at the MTV Europe Music Awards in Madrid.
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Perry does her best Jessica Rabbit at VH1 Divas Live on Dec. 3, 2010, in Miramar, Calif.
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Perry gets festive on Dec. 5 and Dec. 10, 2010.
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In 2010, Perry loved latex.
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Perry is fruity on “Today” on Aug. 29, 2008, in New York and on Feb. 8, 2009, at the Grammys in Los Angeles.
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Perry promotes her film “Katy Perry: Part of Me” in Hollywood on June 26, 2012.
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Perry sports missing pieces at the MTV Europe Music Awards on Nov. 5, 2009, in Berlin.
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Perry salutes Hello Kitty at the Brit Awards on Feb. 18, 2009, in London.
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Perry’s clothing has character on Nov. 6, 2008, at the MTV Europe Music Awards in Liverpool, UK.
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Perry performs as a circus in Liverpool, UK on Nov. 6, 2008, at the MTV Europe Music Awards.
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Perry endorses then-candidate Barack Obama at the MTV Europe Music Awards on Nov. 6, 2008.
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Perry wants the best of both worlds at the MTV Europe Music Awards in Liverpool, UK on Nov. 6, 2008.
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Perry tackles the MTV Europe Music Awards on Nov. 6, 2008, in Liverpool, UK.
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