Katy Perry 'American Idol'Katy Perry 'American Idol'Katy Perry revealed the celebrity singers she'd love to sit alongside on the 'American Idol' panel.Erica RussellErica Russell
Katy Perry Katy Perry Plus, she's finally unveiled her shows' opening acts.Matthew Scott DonnellyMatthew Scott Donnelly
Be In Katy Perry'sBe In Katy Perry'sA new contest gives fans the opportunity to star in Katy Perry's next music video.Erica RussellErica Russell
Katy PerryKaty PerryThe latest scandal to come out of the Perry camp involves Australia's cute and furry citizens: koalas.Rachel KalinaRachel Kalina
Katy Perry FirstKaty Perry FirstShe is the only person to hold three Diamond Song Awards from the Recording Industry Association of America. Rachel KalinaRachel Kalina
Katy PerryKaty PerryPerry joined the social media network in 2009, and has been the center of more than a few viral moments.Matthew Scott DonnellyMatthew Scott Donnelly
Calvin HarrisCalvin HarrisCalvin Harris, Katy Perry, Pharrell and Big Sean collaborate on 'Feels,' a breezy reggae-dance track with a trippy video.Erica RussellErica Russell
Katy Perry ApologizesKaty Perry ApologizesSwift and Perry have been locked in a quiet feud for years.Matthew Scott DonnellyMatthew Scott Donnelly