From PEOPLE Magazine Click to enlarge
KELLY OSBOURNE

DOWN TO A SIZE 2!

THEN JUNE 2007

The reality star, 25, and trainer Sarah Hagaman have their routine down. "She curses me at the gym," says Hagaman, "and thanks me when she's getting dressed." No doubt Osbourne's gratitude was at an all-time high when she slipped into her Tony Ward Couture gown-she's now a size 2!-on Emmy night and wowed the world. Thanks to her workout plan from Blue Clay Fitness (five days of cardio and strength training) plus a sensible diet of vegetables, fish and salads, "Kelly's waist is tiny and her shoulders are more defined," says Hagaman. "It's an incredible transformation."

CAROLINE MANZO

LOST 25 POUNDS!

THEN OCT. 2008

The New Jersey Housewife dropped about 25 lbs. in six months by making a few key changes. "I use portion control," she says. She also cut out soda, drinks "buckets of water" and jumps on the treadmill for 45 minutes almost every day. "I feel good about myself now," says Manzo, 49. "I love it!"

JOE BASTIANICH

LOST 60 POUNDS!

THEN JUNE 2007

The MasterChef judge, 42, took up jogging after he was diagnosed with sleep apnea in 2006. Now he's an exercise fanatic who runs at least seven miles a day and plans to compete in his second triathlon on Sept. 12. He's also lost about 60 lbs. without giving up pasta."I avoid dieting by staying active," he says.

CLAUDIA SCHIFFER

BODY AFTER 3 BABIES!

THEN MARCH 2010

The supermodel gave birth to her third child in May, turned 40 in August and got focused. "She called eight weeks after the birth to say, 'I'm ready to rock,'" says her Pilates trainer David Higgins. "Post-baby, it's all about getting the tummy back." With four one-hour sessions a week, "Claudia gets results quickly," he says.

  • Contributors:
  • CONTRIBUTORS Liza Hamm,
  • Monique Jessen,
  • Thailan Pham,
  • Jeffrey Slonim.