New Year, New You in 2014

Celebrity Weight-Loss Winners

From Tyra's get-fit plan to Heidi's post-baby workout, these stars battled the bulge – and won!

KELLY OSBOURNE

At 24, she finally got into the best shape of her life by dropping 20 lbs. on Dancing with the Stars and coming in third on the show as a fan favorite. "I feel amazing," says Osbourne, who for years battled drug abuse and took up yo-yo dieting. "I was looking at a video and was like, 'I have a jaw line!' I was excited about that."