Yahoo! Music UK — world entertainment news - Katy Perry shut down New York City's Rockefeller Center on Friday performing for hundreds of fans who had slept on the streets since Wednesday to hear her sing. more info

News of The World — X FACTOR judge Katy Perry proves that she's got mauve-y star looks. more info

Starpulse — Katy Perry shut down New York City's Rockefeller Center on Friday, performing for hundreds of fans who had slept on the streets since Wednesday to hear her sing. The pop star played a free concer... more info

Big Apple Music Scene — Katy Perry doing her best impression of the NBC icon at Splash in NYC. (Photo via WENN) Post from: Crushable Katy Perry is a Peacock, You Just Have to Let Her Fly! ... More » Post from: Crushable Katy Perry is a Peacock, You Just Have to Let He... more info

ContactMusic — Katy Perry feels like Russell Brand is her "partner in crime".The 'Teenage Dream' hitmaker admits she feels much less stressed since she started dating the... more info

MTV.co.uk News — Katy Perry has insisted Cheryl Cole will quit X Factor for a role on the American version of the show. Simon Cowell is launching US X Factor in 2011. Katy, who stood in for Dannii Minogue at the X... more info

VH1 News — Taylor Swift's "Mine" video, with its fantasy of marriage and family, seems to be presenting a counter-proposal to Katy Perry's sexy "Teenage Dream." more info

ContactMusic — KATY PERRY shut down New York City's Rockefeller Center on Friday (27Aug10), performing for hundreds of fans who had slept on the streets since Wednesday (25Aug10) to hear... more info

ContactMusic — KATY PERRY fans are in for a sweet-smelling treat - the kitschy pop singer has scented her new album to smell like cotton candy.Perry's new release Teenage Dream is... more info

Mjsbigblog — Fantasia was Outselling Katy Perry on the Day of her GMA Performance …Initially, Perry’s album also faced an unanticipated challenge for next week’s top spot from J/RCA diva Fantasia, whose previous release bowed with 133k in ... more info