Pop Crunch — Katy Perry may want to check out Taylor Swift’s Dear John…. The former Mrs. Russell Brand appears to have broken-up with her rebound boyfriend, John Mayer. A source close to [...] more info

ContactMusic — Katy Perry has reportedly split from John Mayer After a couple months of casual dating the guitar-playing musician and the pop star have split Multiple sources have confirmed to Us Weekly magazine with one saying Shes r... more info

Perez Hilton — Oh shiz! We definitely didn’t see this one coming…at least, not so soon! Reportedly, John Mayer and Katy Perry have already split up, after only a few months of dating! The two have been spotted all over Hollywood these past few weeks, getting th... more info

People.com — "People made it out to be far more than it was," a source tells PEOPLE more info

411 Mania — Mayer could be going with Katy Perry to try and get closer to Rihanna... more info

Chorus.fm — *John Mayer* (http://www.absolutepunk.net/johnmayer) can be found playing "Something Like Olivia" acoustically, in the replies. Submitted by WhoSaidThat? more info

Perez Hilton — Ha! Sorry, this is just the funniest thing we've ever heard!! You see, there's a lil' birdie out there who's saying the only reason John Mayer's hot and heavy with Katy Perry is so he can find love in Rihanna's place! That's right: John-John is USI... more info

411 Mania — Things are heating up… more info

Perez Hilton — When it feels like it's 100 degrees outside, there's only one thing to do! Katy Perry and John Mayer went to a friend's pool party in the Hollywood Hills where questions of their new-found coupledom were non-existent. Because it's obvious. These tw... more info

E! Online — Her ode to John Mayer behind her, was Taylor Swift due for a musical Joe Jonas rant? "I can say it's not about me, because I don't think we've ever tried another... more info