Nargh, and after they renewed their vows in Disneyland and everything...

According to whispers doing the rounds, the host of America's Got Talent host and wife Mariah Carey - who have four-year-old twins Moroccan and Monroe together - are "living separately" following a series of rows.

A source said: "He hasn't been staying at their home. He's been living out of hotels. They're fighting a lot."

Another insider claimed the 45-year-old has grown increasingly suspicious of her 33-year-old spouse - who she married in 2008 - and even hired security to stop any interaction from women when he hosted pool parties in Las Vegas earlier this year.

The source told the New York Post's Page Six "The security guard wasn't there to keep the girls away from him. It was to keep him away from the girls."

She's also apparently told Nick she didn't want him drinking at the Las Vegas shows 'cause she reckons the comic "gets in trouble when he drinks."

The pair are usually very active when it comes to banging on about each other via social media, but they've not been pictured together for months. Mariah hasn't mentioned her spouse since June.

And if that weren't enough, Mariah - who was married to record company boss Tommy Motola from 1993 to 1998 - and Nick put their mansion up for sale in July.