JESSICA ALBA
"For me, cardio is suffering," says the Sin City star—but she doesn't let that stop her. A fan of Tae Bo and elliptical machines, Alba (on the Into the Blue set) admits that "I work out more when I'm going to be photographed in a bathing suit."

WHO'S THAT GUY?

CHRIS EVANS
He shoots flames from his fingertips in Fantastic Four. His physique secret? Weight training and fierce, extreme...Ping-Pong? "It sounds ridiculous," Evans admits, "but you can really get a good sweat."

COLIN FARRELL
would you like some barbecue sauce with that? In Florida in May to shoot Miami Vice. Farrell made his bid to become the toast of the coast.

ANNA KOURNIKOVA
Wimbledon, schmimbledon: She hasn't been on the professional circuit for two years, but much of her career isn't about tennis.

DAVID BECKHAM
Nothing too fancy for the British soccer god. "I just like using free weights and doing abdoms and stuff like that," says Beckham (in Saint-Tropez on June 21).

SERENA WILLIAMS
The chiseled tennis ace (in Melbourne in January) "is not on any special diet," says her trainer Kerrie Brooks. "But during tournaments she doesn't eat sweets and fast food."

JAKE GYLLENHAAL
"Exercise is a natural high," says Gyllenhaal, who hits the gym most days and takes long walks with his German shepherd Lovey. On Maui last month for some sun, he showed off the results.

ELIZABETH HURLEY
Hurley (in the French Indies) attributes her bikini readiness to 3-year-old son Damian. "We're constantly jumping up and leaping over gates," says Hurley. "Heaving the baby around—that helps too."

JESSE METCALFE
"I feel good when I'm active," says Metcalfe, who runs and plays basketball to keep trim.

BEYONCE KNOWLES
Knowles (with Jay-Z in Saint-Tropez on June 16) runs—and also partakes of her mom's fried chicken and gumbo. "There is nothing wrong with curves," she told PEOPLE.