Stars' Best Parts

They say the camera adds 10 lbs. – so staying trim and toned in Hollywood must be almost as tough as winning an Oscar. In recognition of those who live by the motto "No pain, no gain," we've chosen the physical attributes of the stars we think have benefited from it most. From Ben's chest to Geri's abs, each qualifies as a perfect part – and as any actor can tell you, finding those in Hollywood is rare indeed.

BEST ARMS: TOM CRUISE

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To maintain the bulging biceps he so prominently displays in the Mission: Impossible films, Cruise employs a personal trainer and brings along his own mobile gym to location shoots. "I work hard," he told PEOPLE in 2000, "but I love to work hard." With results like these, who wouldn't?

BEST LEGS: NICOLE KIDMAN

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"Growing up, I'd be described as a colt," says the 5'10" Oscar-winning star. "Having long legs makes you geeky." But since she's stuck with them (poor thing), she keeps those gams gorgeous by hiking and swimming. Says Kidman: "I'm kind of a water baby."

BEST CHEST: HALLE BERRY

Jeff Kravitz/Film Magic

"Even though I like to stay in shape," Berry has said, "I want to stay feminine." With personal trainer Robert White – "the only man I will trust with my body" – Berry does Pilates and a full-body workout with plenty of chest-press exercises, which, she said, "muscles up the right places."

BEST ABS: GERI HALLIWELL

Joseph Montezinos/LVA

"I've been every shape and size," says the former Ginger Spice, who has now figured out what she really, really wants: a balanced mix of cardio, kickboxing and, most important, an ab-solutely fabulous regimen of sit-ups and three yoga sessions a week. "Yoga's good for strengthening," Halliwell told PEOPLE in 2002. "With the breathing, it massages the stomach without your even realizing it."

BEST LEGS: PATRICK RAFTER

AP Photo/Dave Caulkin

He's now retired, but all that cross-training and practice (sometimes for up to three hours a day before a match) sure paid off. But Rafter can't take all the credit for his killer calves. "It's genetic," says brother Peter. "Dad had great legs, too."

BEST CHEST: BENJAMIN BRATT

Leslie Sokolow/Lamoine Photo

The onetime 6-ft., 145-lb. Bratt bulked up in high school by running five miles a day, then hitting the mat for hours of wrestling practice. Now he maintains those muscles with rock climbing, tennis and surfing. As Bratt once told PEOPLE, "I like pushing the limits."

BEST ABS: USHER

Big Pictures USA

Talk about suffering for beauty. RampB star Usher squeezes in up to 1,000 stomach crunches every day, and when he's not on tour, he makes four two-hour trips to the gym each week. Still, even he has limits. "I don't touch weights," he says. "It's better to lift your own weight. That's why you see boxers punching the bag, doing jump-rope. It makes you stronger."

BEST ARMS: JENNIFER GARNER

David Stoltz/Celebrity Media

Before landing the lead on Alias, Garner "looked good," says her trainer, Valerie Waters, "but we had to step it up because spies are in really good shape." Garner keeps her arms toned with "three sets of biceps curls and maybe six sets of triceps" at least thrice weekly, Waters says, adding, "We focus on strength. She's not this girl that's ripped but can't do a pull-up."