They've only been married for six months, but the latest celeb rumour is that Fergie and Josh Duhamel's marriage is in trouble already.

US sleaze rag The National Enquirer claims that he wants to settle down and have kids, but that the Black Eyed Peas singer is reluctant to halt her party lifestyle.

The paper quoted a "friend" of the couple as saying: "[They're] clashing night and day and they're desperately trying to get a handle on their problems. Publicly, they've painted a picture of sheer bliss, but behind the scenes, cracks in their young marriage are beginning to show.

"[Josh] is a traditional guy, and he wants a family. Fergie doesn't seem capable of slowing down long enough to really consider children. She's the toast of the music world... and has an incredibly hectic schedule touring, recording and performing."

"She's a major partier. Fergie is completely caught up in being a rock star... Josh is still madly in love with her, and she loves him. But Josh wants Fergie to grow up."

We're not completely sure on this one, we reckon it's the height difference between them that means they can't see eye to eye. Do you think the story is true?

Let's hope they don't join these other couples on the celeb relationship scrapheap anyway...