From Tyra's get-fit plan to Heidi's post-baby workout, these stars battled the bulge – and won!
Credit: Fame: Flynet
Updated: Wednesday Dec 30, 2009 | 08:15 AM EST
More from PEOPLE
See More News
See which stars are showing off a whole new look and attitude in 2013
4 of 10
Working with trainer Gregg Miele throughout her pregnancy helped the Grey's Anatomy star, 40, quickly bounce back to her pre-baby bod after giving birth to daughter Stella on Sept. 15. "I feel great!" Pompeo told PEOPLE.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL