ContactMusic — Singer Katy Perry is ditching John Mayer and taking her actress pal Allison Williams to the 2013 Grammy Awards as her date.The Fireworks hitmaker has... more info

E! Online — We're guessing John Mayer's' kiss-and-tell days are over. In a forthcoming interview with CBS Sunday Morning, the "Clarity" singer and Katy Perry's new beau... more info

ContactMusic — British comedian Russell Brand has opened up about his ex-wife Katy Perry's new romance with serial dater John Mayer, insisting he is no longer in a... more info

Dlisted — The Orange County version of Dan is doing it with the Upper East Side version of Summer. I guess Adam Brody and Leighton Meester want to keep it in The CW family - Lainey Gossip  Natalie Portman drives a huge ass Mercedes hybrid, but shouldn't ... more info

ContactMusic — After 2013 hit with a storm of high-profile breakups and divorces (Rupert Sanders, Justin Bieber and does anyone even remember when Taylor Swift and... more info

ContactMusic — John Mayer wants to move in with Katy Perry. Although the 35-year-old lothario owns bachelor pads in Montana and Los Angeles' San Fernando Valley, he... more info

ContactMusic — Girls star Allison Williams has taken her romance with John Mayer's best pal Ricky Van Veen to the next level - the couple has moved in together,... more info

ContactMusic — John Mayer is ''quite happy'' with Katy Perry.The musician remained coy when quizzed about his relationship with the 'Part of Me' singer - who he has... more info

ContactMusic — Singer/songwriter John Mayer dedicated himself to learning how to cook healthy meals while waiting for his damaged vocals to return to full strength... more info

411 Mania — Perry moves on from John Mayer... more info