ContactMusic — KATY PERRY is still sleepwalking at the top of the U.S. pop charts - her TEENAGE DREAM hit has scored a second week at number one.Eminem and Rihanna's collaboration Love... more info

Guardian Music — The puppet master who pulls the strings for Diana Vickers, Ellie Goulding and Cheryl Cole steps out with his own slice of glowsticks-at-the-ready popChances are you wouldn't recognise him if you bumped into him on the street, but unless you avoid lis... more info

Gigwise — Singer praises the rapper... more info

MTV.co.uk News — Katy Perry has branded some of Lady GaGa's fashion choices for the VMAs as 'over the top.'The Teenage Dream singer, who attended the star-studded bash last Sunday with her hubby-to-be Russell Brand... more info

Perez Hilton — Girl knows how to put on a show! Katy Perry visited her alma mater yesterday and put on a terrific show for the kiddies of Dos Pueblos High School. After an hour set, she closed the show with her song of the summer, California Gurls! Check out her pe... more info

TMZ — Filed under: Katy Perry Not everybody wants to date Katy Perry -- despite what she may think -- because the dude who was the target of Katy's "look at me now" moment at her concert this week tells us ... he doesn't regr... more info

Idolator — Yesterday, Katy Perry made a heroine’s return to her alma mater, Dos Pueblos High School in Santa Barbara, to perform some of her hit tracks—and to get the last laugh, apparently. TMZ has footage of her pointing out the popular kid from her gradu... more info

ContactMusic — Pop star KATY PERRY turned up the heat at her old high school on Tuesday (14Sep10) when she returned to stage a surprise performance dressed in a sexy... more info

Idolator — Sara Bareilles can celebrate her first #1 offering, as Kaleidoscope Heart has bumped Disturbed’s Asylum from the peak of Billboard’s Top 200 Albums chart. Still, like Katy Perry and Disturbed, Bareilles displayed low numbers for a #1 LP in the wa... more info

MTV.com News — 'She said some stuff that I was like, 'Oh my god, girl!' ' singer says.By Jocelyn Vena, with reporting by Audrey Kim Chelsea Handler onstage at the 2010 MTV Video Music Awards Photo: Kevin Winter/Getty Images Chelsea Handler had a number of... more info