Cheryl Cole to stay fit under Madonna and Gwyneth’s personal trainer

London: The US ‘X factor’ judge Cheryl Cole is reported to have hit the gym just 24 hours after landing in Los Angeles with trainer Tracy Anderson, who has also trained Madonna and Gwyneth.

The exercise guru, who has worked with A-Listers, has put Cole through a very tough first workout.

“Cheryl works out anyway but she knows that LA celebrities have a completely different health and fitness ethos,” The Daily Mail quoted as a source as telling The Mirror.

“She wants to make sure she’s fighting fit and ready for the US X Factor and the American audiences and she wanted the best in the business for it.

Cheryl has already been following the ‘cleanse’ diet, devised by the personal trainer, for weeks. It involves eating 14 servings of pureed infant food a day before a healthy adult dinner,” the source added.

Cole had hired Anderson after a mutual friend Derek Hough introduced them.