Starpulse — John Mayer has teamed up with his pop star girlfriend Katy Perry to record a a romantic duet for his new album Paradise Valley. The stars recently rekindled their on/off relationship, and Mayer ev... more info

Topix — Simon Cowell is reportedly setting up his child's mother in a Beverly Hills mansion, Katy Perry unveils her single's artwork, and Jay Z briefly reunites with Damon Dash . more info

Consequence of Sound — Mayer recruits R&B crooner and ex-girlfriend. more info

E! Online — Ready to "Roar" with Katy Perry?! Just days before the release of the singer's highly anticipated single, the 28-year-old performer took to Twitter to share the cover art for... more info

E! Online — Katy Perry killed off her cotton-candy image, but her love for cats will never die. On Tuesday, the pop star released the latest video teaser for her upcoming single "Roar,"... more info

CNN Showbiz — To promote her upcoming album, Katy Perry has been posting clever videos promising a new, streamlined persona. more info

Unreality Music — Katy Perry is in the process of saying goodbye to her previous album in a series of videos. Today came Find out more... View the original post Katy Perry lays the ‘Teenage Dream’ era to rest in new ‘ROAR’ promo on Unreality TV more info

E! Online — Katy Perry's colorful wig and whipped cream bra-wearing days are over. The singer has made it clear to fans that it's time to say goodbye to the star's Teenage Dream image... more info

Big Apple Music Scene — When Russell Brand dies, his gravestone will read, "yeah I'm the guy who married Katy Perry, but don't judge me dude. I hated having sex with her. Like really hated it. Sometimes I would just think about it, years later, and vomit all over myself." M... more info

411 Mania — Due out on August 12... more info