Mariah Carey is reportedly battling to lose her baby weight. The 41-year-old gave birth to twins Moroccan and Monroe back in April and has been working hard to shift the pounds ever since.

Mariah is rumoured to have already lost 30lbs but is trying to shift 25 more before she makes her official comeback when the American version of The X Factor premieres on September 21. "Mariah has been careful in her few public appearances to hide her extra pounds," an insider said. "She knows everyone is curious how she's rebounded after her pregnancy. She wants to have a killer body!"

 

The singer, who is married to television host Nick Cannon, has hired a trainer and nutritionist to help her with her diet and exercise regime. She is apparently using free weights, going swimming and doing aqua aerobics. "She works out a minimum of two hours a day, seven days a week now, and she's on a Spartan diet, cutting out refined sugar and white flour and most meat products," the source revealed. "It's making her crabby. But she's leaving nothing to chance!"