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
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!"