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Katy Perry and John Mayer Spoof the ’70s on ‘Ellen’: Watch
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5 Essential GIFs of Katy and John Riding a Bull in ‘Who You Love’
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The Most Memorable Celebrity Selfies of 2013: Photos
FINALS: Vote for Your Favorite Cover of Katy Perry’s ‘Roar’
Katy Perry Covers ‘Marie Claire,’ Talks Divorce, Kids, John Mayer
Grammy Nominations: Taylor Swift, Macklemore, Lorde, and More!
‘Pop Danthology’ Mashes up 68 Songs, Music Videos From 2013
Niall Horan Sets Record Straight About Dinner With Katy Perry
Katy Perry and John Mayer Get Cozy in First Portraits as a Couple
SEMI FINALS: Vote for Your Favorite Cover of Katy Perry’s ‘Roar’
Mashup Monday: Katy Perry vs One Direction
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ROUND 5: Vote for Your Favorite Cover of Katy Perry’s ‘Roar’
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Katy Perry Struck by Car in Epic ‘Unconditionally’ Music Video
ROUND 4: Vote for Your Favorite Cover of Katy Perry’s ‘Roar’
Katy Perry Announces ‘Prismatic’ World Tour: See the Poster