Swalla Jason Derulo Feat. Nicki Minaj & Ty Doll Download 'Swalla' on iTunes
Black Eyed Peas star Fergie has revealed her secret of how she stays in shape.
The singer revealed that she takes a personal trainer on tour to avoid a diet of junk food.
Fergie told the Daily Star: “While filming movie Nine I ate my brains out, everything fried.”