You asked:

what songs did katy perry write

  • The songs that Katy Perry is an author of include Hot N Cold, Roar, Firework: Remixes, I Kissed a Girl and Last Friday Night (T.G.I.F.).
  • Hot N Cold
    Hot N Cold
    Hot N Cold

  • Firework: Remixes
    Firework: Remixes
    Firework: Remixes

  • I Kissed a Girl
    I Kissed a Girl
    I Kissed a Girl

  • Last Friday Night (T.G.I.F.)
    Last Friday Night (T.G.I.F.)
    Last Friday Night (T.G.I.F.)

  • last friday night tgif remixes 1
    last friday night tgif remixes 1
    last friday night tgif remixes 1

  • california gurls the remixes
    california gurls the remixes
    california gurls the remixes

  • Hot n Cold
    Hot n Cold
    Hot n Cold

  • Teenage Dream Remixes
    Teenage Dream Remixes
    Teenage Dream Remixes

  • UR So Gay
    UR So Gay
    UR So Gay

  • Ur So Gay
    Ur So Gay
    Ur So Gay