Jennifer Lopez

You'd think that having two new beautiful, bouncing babies in the house would be enough to concentrate on for a while for Jennifer Lopez. Apparently not. It seems Jennifer was desperate to lose the pregnancy weight she gained when carrying twins Max and Emme, and has been spending much of her time engaged in a gruelling weight-loss regime.

It's been reported that the Latino star flew Beverly Hills celebrity fitness trainer Gunnar Peterson to New York to help her lose weight fast and is getting up at 4am to do a three-hour work out. When she took to the red carpet at the Shine A Light premiere, it looked like she had shed most of the 50lbs she had gained whilst pregnant in just five weeks.