Britney Spears says she doesn't like the word "comeback," but in 2008 the chart-topping singer certainly made one. And the most dramatic part of her return to the spotlight was the 20- to 25-pound weight loss that made the star's body look as toned as it did a decade ago.

Yet Brit, 27, didn't really mind dancing for two to four hours every day to get her 5-foot-4 body burning fat. "To me, dancing doesn't feel like exercise," Britney has told Life & Style. "I love it, and I'm always happy when I'm done."

Brit's not the only star who's taken off the pounds! To read what Jessica Alba, Halle Berry and Eva Longoria, among others, have done to get in their best shape, pick up the latest issue of Life & Style, on newsstands now!