Willoughby departing 'The Xtra Factor'?

Holly Willoughby will be replaced by Christine Bleakley on next year's The Xtra Factor, say tabloid reports.

According to the Daily Star, Willoughby will step down from her role on the spinoff show after the latest series ends at Christmas.

"Holly's enjoyed Xtra Factor but feels the time is right to step aside and let someone else have a go," said a source.

The 28-year-old, who also hosts This Morning and Dancing On Ice, gave birth to her first child Harry in May.

The One Show host Bleakley is allegedly Simon Cowell's new favourite TV presenter.

GMTV's Ben Shephard presented the first three series of The Xtra Factor, while Fearne Cotton took over in 2007.