Latest Katy Perry News, Photos and Videos

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John Mayer Talks Lorde, Eddie Vedder, and (Of Course) Katy Perry in Tumblr Chat

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Christina Aguilera, Ariana Grande Added to List of Performers Taking the Stage At Sunday’s American Music Awards

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Katy Perry To "Naked" Female Popstars: Put It Away…

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Katy Perry’s 7 Most Awesome Dirty Innuendos In Her Lyrics

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Niall Horan Asks Katy Perry To Marry Him on Twitter

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Paul McCartney, Katy Perry Share Songwriting Tips in London

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Taylor Swift Almost Ran Into Ex John Mayer (VIDEO)

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Cincinnati Bengals Fans Reject Katy Perry Song

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Katy Perry Calls Out BFF Rihanna! ‘We All Know How Much Weed [She] Smokes!’

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Pretty Cool: Miley Cyrus, Tina Fey and Bruce Willis Announced as ‘Saturday Night Live’ Hosts For This Fall

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Perez Hilton Reveals Topless Lady Gaga Photos As Their Feud Continues

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Katy Perry & John Mayer: More Music Together!

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Brit Rocks the Blue Carpet at the Premiere of 'Smurfs 2' (PHOTO)

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John Mayer Buys a Guitar for One of His Fans

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Katy Perry Tells 'Vogue': I'm Still "Madly In Love" With John Mayer

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Katy Perry Wears a Sexy Catsuit and Teams With Wig-Wearing Cats in Funny Popchips Video

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Russell Brand Spotted With New Girlfriend, Alessandra Balazs

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Celebrity GPS: Where Jaime King, David Beckham, Katy Perry and Other Stars Were Spotted This Week

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Kristen Stewart Feels "Betrayed" By Katy Perry Over Robert Pattinson

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Katy Perry Denies Being Part of Rihanna's $8,000 Strip Club Adventure