Superstar singer Mariah Carey is being tipped to join the judging panel of the US X Factor, according to the papers.

The Sunday Mirror reports that the chart-topper is in negotiations with show bosses and has said she is very keen to take part if filming dates fit in with her work schedules.

The news follows months of speculation that Cheryl Cole was set to join the panel – and that Simon Cowell had tried to persuade executives at the Fox TV network that she was perfect for the show.

“Look, I’d love Cheryl out there but whether it will still happen who knows?” he told the paper on Saturday.

“I can’t say more because it’s too early and I can’t say. But there will be surprises.”

However an insider in the US added, “The Fox executives are totally against Cheryl joining the panel.

“Simon has put her forward and is trying to persuade them that she’s perfect for the job. But they’re saying that her accent is difficult to understand, and nobody knowing who she is, she doesn’t have the star qualities to draw in an audience.”

They are going to be competing with American Idol’s ­star-studded panel of Aerosmith’s Steven Tyler and J-Lo,” the insider added, “and Cheryl just doesn’t cut it compared to them. She’s not a name.

“While Simon may want ­Cheryl he ­understands Fox’s insistence that he delivers a strong panel to bring ­viewers, and therefore advertising, in and ­make as much money as they can.”

If Mariah does join the panel she is expected to join Simon and Pussycat Doll Nicole Scherzinger – who made a strong impression as a guest judge on the current series of the show.