Here's a celebrity news item that will absolutely shock and amaze you: John Mayer has finally broken up with Jennifer Aniston. Marc Malkin of E! Online reports:

A source says the pair's on-again, off-again relationship may have ended sometime within the last week, when Aniston returned from her overseas Marley & Me junket.

"He broke up with her when she got back from her European tour," the source said.

While the reasons behind the split have yet to be revealed, I think we all know what happened. It's one thing for your girlfriend to spend half of every interview she does talking about her ex-husband, but when she asks you to wear a Brad Pitt mask in bed you have to draw the line somewhere.