From PEOPLE Magazine Click to enlarge
1 PIPPA'S BUM

Move over, Kim Kardashian. Once Pippa Middleton, 27, stepped out in a figure-skimming Alexander McQueen gown at the royal wedding, her posterior became an instant phenomenon that now boasts at least three Facebook fan pages and its own Twitter feed.

2 Charlie's Ripped Torso

One of the most shocking revelations to come out of Sheen's My Violent Torpedo of Truth tour: The actor, 45, has winning abs. "I'm working out so hard," he told PEOPLE. "I'm in better shape than I've ever been in."

3 Heather Morris As Britney

The Glee star, 24, wowed fans by recreating Britney Spears's sexiest videos on the show. Months before, "I was like a monster, training my a-- off," she said.

4 Cameron's Buff Biceps

The star, 38, gave an impressive gun show after training with her beau Alex Rodriguez in February. "The more I work on my body at this age," she said last year, "the better it gets."

5 Beyonce's Daring Dress

In a barely-there, mesh and metal minidress, the singer earned a standing O after she performed "Run the World (Girls)" at the Billboard Music Awards in May.

6 Rob Lowe Shirtless!

At 47, the Brat Pack sex symbol got hearts racing with his shirtless Vanity Fair cover. His key to fending off flab? Adventure sports like big-wave surfing.

7 Nigella Lawson Undercover

Is the British chef, 51, suddenly shy about her famous hourglass figure? Hardly. Her rep said Lawson wore what papers dubbed a "burkini" for sun protection.

8 Brooklyn's Bikini Bod

Swimsuit model Brooklyn Decker made her memorable movie debut by emerging from the surf in Just Go with It.

9 Ginnifer's Weight Watchers Confession

Actress Ginnifer Goodwin revealed she signed up for Weight Watchers as a kid because "at 9 years old I weighed about 10 lbs. less than what my weight is at 32." Says Goodwin, who still uses the program online: "I needed to get help."

10 Kirstie's Dancing Makeover

On Dancing with the Stars, Kirstie Alley's moves got better as her waist got smaller. "It's the best workout I've ever had!" says the runner-up, 60, who rehearsed five hours a day and followed her Organic Liaison weight-loss supplement program. Now more than 70 lbs. lighter: "It feels great to buy new clothes ... and get rid of all your old stuff!"