Katy Perry And John Mayer Reportedly Break Up

Katy Perry and John Mayer have split up, according to People magazine. The pair, a source says, have been on-again/off-again since June, but are finally calling it quits.

A separate source, however, speaking with Us Weekly, thinks the break up may not be permanent: "It's sad. It's not over until it's over. You have to see how things play out."

The source added that the busy schedules of the two stars came into conflict too often: "She's leaving the window open. They have both been so focused on work."

The separation comes as a little bit of a surprise as the pair were spotted hiking in the Hollywood Hills earlier this month, while, last month, they were together apparently enjoying themselves at the Grammys.

There's been no official word on the split.

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