ROBBIE WILLIAMS - ROBBIE'S ON THE ATKINS DIET

British pop prince ROBBIE WILLIAMS is so desperate to stay slim on his European tour, he's started following the famous ATKINS DIET.

The 29-year-old is following the high-fat, carbohydrate-free diet - popular among weight-conscious celebrities - and eating nothing but fish, in a bid to trim down his 13 stones (82.5 kilograms) frame.

A friend of the singer, who is performing in Denmark tonight (25JUL03), explains, "Robbie is desperate to lose weight. He is living on Sushi and has ordered chef not to serve food with carbohydrates."

Robbie recently revealed how anti-depressant tablets he was prescribed had caused him to pile on the pounds by stopping his body from burning fat.

He said, "They've screwed up my metabolism. I run and walk miles, but the weight won't come off."

The Atkins Diet has a long list of famous followers, most notably actresses RENEE ZELLWEGER and JENNIFER ANISTON and former SPICE GIRL GERI HALLIWELL - but some experts have warned it is dangerous and increases the risk of kidney stones.