Nicole Scherzinger `to host US X Factor`

The 32-year-old former Pussycat Doll was in the running to sit as a judge on the series, but according to The Mirror, show boss Simon Cowell has offered her the job of the presenter.

Meanwhile, the music mogul is believed to be continuing his tireless campaign to get Cheryl Cole a seat on the judges' panel.

A source said, 'Never has there been so much behind-the-scenes wheeling and dealing as with X Factor USA. Having lined up Nicole as a potential judge, Simon decided to try something different and unexpected, and have a non-mainstream presenter present.

'Nicole's had screen tests and is a natural in front of the camera. Autocue does not faze her at all. As an established singer, both as a solo artist and in a group, Nicole will be great with the contestants and knows what she is talking about.

'The approach was made a few weeks ago. And although she has still not formally signed, it's all looking very positive.

'On the judging front, things are changing almost daily, but Simon has put his neck on the line to sell Cheryl to network bosses. After being stonewalled initially, Simon believes he has convinced them to sign off her deal.'