Look Great in '09
Celeb Weight-Loss Winners
See how Halle Berry, Jennifer Lopez and more hit the gym and shaped up for '09!
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CHRISTINA AGUILERA
"I never felt my weight get out of hand," the singer said about carrying son Max Liron, born Jan. 12, 2008. So she waited until mid-March to exercise with trainer Tee Sorge. "I do the treadmill, I box, and I do a lot of weights. I feel so much better when I work out." She also burns calories breast-feeding – and by summer, Aguilera was back in body-hugging dresses.

