KELLY OSBOURNE

Tired of quick fixes and fad diets, Osbourne looked to her Dancing with the Stars' partner Louis van Amstel for advice. His recommended high-protein, low-carb diet, coupled with dance and weight training, got results! Osbourne shed 50 lbs. – and showed off her new toned size 2 figure in a bikini on the December cover of Shape. "I can't believe I just did that and my body looks this good," she said.

Pacific Coast News; Courtesy Shape Magazine