Beyonce Knowles quickly piled on the weight she drastically lost for new movie DREAMGIRLS by celebrating with a dozen doughnuts when the film wrapped. To slim down for the film, the pop superstar lost 20 pounds in just two weeks on the 'master cleanse' programme, which consists of fasting and drinking only cayenne pepper, lime and maple syrup-infused water. And the food-lover admits it was a struggle to stick to the fast, because friends and family wouldn't consider her hunger pains when they were gorging themselves on sweet treats. Beyonce says, "I was very hungry, therefore I was evil. "Everyone around me was eating Krispy Kremes (doughnuts) every day, so when we wrapped the movie I was so excited that was the first thing I did; I ate a whole dozen Krispy Kreme doughnuts."