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Katy Perry and Madonna Get Eyes Popping in Sexy ‘V’ Shoot
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Katy Perry, Lorde, Robin Thicke, More Win at 2014 BBMAs
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Katy Perry Reveals Her Style Inspiration for ‘Prismatic’ Tour
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Katy Perry Throws World’s Worst Parties in ‘Birthday’ Video: Watch
Katy Perry Portrays Party Entertainers in ‘Birthday’ Video Preview
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Candy, Cake, and Cookies Star in Katy Perry’s ‘Birthday’ Lyric Video
Vote: Which Hair Color Looks Best on Katy Perry?
Katy Perry Dyes Hair ‘Slime Green': Photo
Katy Perry Releases Cover Art for ‘Birthday’ Single
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Miley Cyrus Blasts Katy Perry After ‘Tongue’ Remarks
Katy Perry Plays Weather Girl in Australia: Watch
Katy Perry Helps Deliver Baby in Living Room