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    Party people in the place to be. Ellie Goulding, Katy Perry, Calvin Harris, and Rita Ora have some fun backstage at the 2013 MTV European Music Awards on Nov. 10 in Amsterdam

    Katy Perry

    Katy Perry | GRAMMY.com

    Katy perry 2013

    Katy Perry 2013 American Music Awards Arrivals

    Katy Perry | GRAMMY.com

    Katy Perry

    Katy Perry | GRAMMY.com

    Katy Perry

    Katy Perry

    Katy Perry

    Katy Perry

    Katy Perry ♥

    Katy Perry ♥

    Katy Perry ♥

    Katy Perry ♥

    Katy Perry

    katy perry

    Katy Perry

    Ready to "Roar." Katy Perry and her cat ears arrive at Narita International Airport on Oct. 30 in Japan

    Click through the image above to Give Respect to Katy Perry #RespectKatyKats