A-list beauty tips inside and out

On the outside: J-Lo knows you don't need to perform hundreds of sit-ups to firm your abs. For the flattest tummy, you only need to do 15 to 20 reps of an exercise which takes a maximum of just ten minutes just two or three times a week. Try a combination of crunches and reverse curls to make sure you tone your stomach muscles from both ends. Any form of regular, cardio exercise will also help you get that super-sexy stomach by shedding the layer of fat covering the muscles.

Hollywood top tip: Ditch the booze. Not only does alcohol provide 'empty' calories, which become fat if they're not burnt off, it also irritates the stomach lining and intestines, causing your tummy to swell. If you can't give it up, just try cutting down - it's not called a beer belly for nothing!

Cellulite

A-list aim: Jessica Simpson's smooth, dimple-free legs in The Dukes of Hazzard drew admiring glances from men and women alike.

On the inside: Experts believe we need to build the skin from the inside out to give us those streamlined thighs we all crave. The key building blocks of the body are amino acids found in beans, wholegrains and seeds, essential fatty acids found in flaxseeds, walnuts and cold water fish, and lecithin found in soya and eggs. When she has to get in shape for a part, Jessica also cuts down on sugar and salt as these are thought to trap fluid in cells, contributing to the dreaded orange-peel effect.

On the outside: Massaging body lotion into the backs of your thighs and your bum after a bath or shower can help reduce cellulite by improving circulation. Some specially designed anti-cellulite lotions contain ingredients to improve the skin's elasticity - it won't banish all lumps and bumps but it will make skin smoother.

Hollywood top tip: Water. Up your fluid intake - drinking more water (at least eight glasses or two litres a day) will help flush impurities out of your system. And remember, cellulite affects all of us, even skinny girls, so love your shape.