Just a week John Mayer were getting married, the Mirror reports the couple have now split.

The newspaper claims that Jennifer Aniston was dumped by rock singer John Mayer while they were on the European leg of his tour.

The split is yet more heartache for the gorgeous Friends star, who has had a number of failed relationships since her divorce from Brad Pitt four years ago.

"There's been a bit of tension for some time," says a source close to 30-year-old John.

"They initially opted for a break, hoping a trial split might make them stronger. Sadly it doesn't seem to have worked.

"John took the decision to end things as he felt he just wasn't ready for the level of commitment that Jennifer deserved.

"Contrary to reports, Jen didn't want to have kids or marry this year, but she did want to set a timetable for their future together.

"She also wanted him to assure her he would cut down his tours in the future when they did eventually have children.

"Initially, Jennifer was furious when he told her of his decision but now she's simply sad - not to mention a little heartbroken.

Last night a spokesman for Jennifer declined to comment.