Leona LewisLeona Lewis has reportedly been hooked up with a top personal trainer to tone her up for the US market.

The X Factor winner recently topped both the US singles and album charts with her first releases over there but a source told the Sun that her record company thinks she needs to shape up if she wants to stick around for the long term: “Leona has done brilliantly in the US.”

“But some of her team think she needs to be a bit sexier if she wants to have the longevity of female artists like Mariah Carey, Janet Jackson or Madonna.”

The source added that her advisers are said to have called in Mariah’s go-to trainer, Patricia Gay: “They think that having Leona train with Patricia would be a treat for her because she adores Mariah.”

“She will go to Patricia’s base in the Caribbean for some intensive sessions and then Patricia will visit her regularly to continue the project.”