Fergie and husband Josh Duhamel are on the verge of breaking up, the National Enquirer report. The couple married just six months ago but insiders say they've recently been arguing as Transformers star Duhamel wants Fergie to give up her party lifestyle and start a family. "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," a source explained. "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." Read more about 2009's biggest celebrity break-ups.