Part Of Me 3d

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  Katy Perry's grandmother keeps her grounded

  Katy Perry is amused by the fact that 91-year-old, Ann Hudson doesn't acknowledge her success and can't understand the fuss that surrounds her.

• Katy Perry opens up about divorce in upcoming movie

  The Teenage Dream hitmaker's forthcoming 3D movie Part of Me features footage shot around the time she split from Russell Brand.

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  Katy Perry signs Pepsi deal

  The Firework hitmaker Katy Perry has agreed a deal with Pepsi to promote her concert movie.

• Madonna inspired Katy Perry's concert film

  Pop star Katy Perry has credited pop queen Madonna with inspiring her upcoming 3D concert movie.

• Katy Perry's 3D concert movie to release this summer

  Pop star Katy Perry says her upcoming 3D concert movie, Katy Perry: Part of Me will hit screens this summer.

• Katy Perry wants fans to choose songs for new movie

  Pop star Katy Perry wants her fans to help choose the songs for her new 3D movie Katy Perry: Part Of Me.