"Extra" has a hot new beauty alert from the cosmetic capital of the world -- Beverly Hills! Say goodbye to zits with a magic wand from "Therapeutix," a new line of skin products from Dr. Debra Luftman.

You love smiles on celebs -- and now you can have one! "Extra" has your secret weapon to designing a smile exactly like the one on your favorite celebrity. We're with "Days of Our Lives" hunk Bryan Dattilo as he visits Beverly Hills smile-maker Dr. David Frey -- who creates dazzling pearly whites for the red carpet!

Mario Lopez has wowed America with his ripped abs, bulging biceps and knockout physique -- now the hunky "Extra" correspondent reveals his body beautiful secrets in his new book, "Mario Lopez's Knockout Fitness"! "The book covers everything from fitness to nutrition, to just leading a healthier lifestyle overall," says Lopez.

"Extra" was there as Mario bared some muscle for the book's photo shoots -- and got a sneak peek at the "Chorus Line" star's favorite exercises -- including three different types of curls. Having a great body pays -- Mario is currently steaming up Broadway, and danced with the "Stars," but he believes that anyone can adopt a healthy lifestyle. "The problem is finding the time," he says, "I don't really have the time, I just make the time."

Mario also shares his tips for staying fit: eat healthy, keep a journal and stay focused! "Mario Lopez's Knockout Fitness" goes on sale May 13th.

"Extra" hits the sand for the hottest bikini bash ever, sponsored by Cosmo magazine and Nivea. A gaggle of gorgeous girls got ready for one of the largest US swimsuit photo shoots in history -- by taking the "Nivea Good-Bye Cellulite, Hello Bikini" Challenge -- and "Extra" has their tips to get bikini-ready for summer!

Super ripped rapper LL Cool J and Oprah's hot new wellness wizard, Dr. Mehmet Oz, are "Extra's" get-fit gurus, and they're taking on childhood obesity epidemic. The dynamic twosome will be getting overweight kids into shape!

"Dancing with the Stars" is heating up -- and power couple Marlee Matlin and partner Fabian Sanchez are dancing their way into the "Extra" studio. The Oscar-winning actress reveals how at week seven of the competition, all the moving and shaking have helped her drop some serious weight.

"I've lost three sizes in my pants," signed Marlee, "but what's really important is my energy has gone way up because I have a good diet... I'm working out every day." Matlin's rhythm has astounded viewers as the first deaf contestant -- but her secret to keeping on beat is no mystery; "I lead, she follows," says Fabian.

Matlin's weight loss reflects in the progressively more risqué outfits she's rocked on the dance floor. How far will "The L Word" actress go with her skimpy threads? "I'll go as far as I can," says Matlin, "as long as they cover up the most important parts that no one should ever see on television."

Click on an image to view the DANCING WITH THE STARS CAST photo gallery!

Her name is Ali Vincent, but you can call her the "Biggest Loser!" Ali started at 234 lbs. and dropped to and amazing 122 lbs. -- losing 47% of her body weight -- in just 16 weeks! Now "Extra" reveals how Ali didn't let sweets sink her new diet, and her other secrets for a svelte physique!

Also, tune in to "Extra" for other top tips for a summer slim-down from the "Biggest Loser" trainers themselves, Bob Harper and Jillian Michaels.

Lean "Workout' queen Jackie Warner is dispelling the big fitness myths, from useless exercise to diet lies! Then, meet Jackie's new Bod Squad -- they're ripped and ready to get you into shape.

You don't have to pump iron, run a marathon or even diet to live to be 100 -- "Extra" has uncovered four major secrets to a longer life.

Are you jealous of the way Jennifer Lopez dropped her baby weight? Don't be! Trainer to the stars Gunnar Peterson is showing "Extra" exactly how J.Lo did it -- and three exercises moms can do at home!

The Food Network superstar is cookin' up some big news in the Big Easy -- and revealing the one thing you'll no longer find at her dinner table!

A shocking new report claims the beauty enhancer Botox might be able to travel to the brain. It's a scary headline -- should you be concerned? "Extra" enlists top docs to analyze the potential dangers.

An emotional Carnie Wilson appeared on "Good Morning America," talking about regaining 70 pounds since her gastric bypass surgery nine years ago, lamenting, "It's always going to be a battle."

The National Enquirer claimed her weight ballooned back to 227 pounds, but Carnie blasted, "It's total bull****.Total bull." She also shot down reports claiming she's set to undergo another procedure to lose weight. "They were saying I was going to get liposuction; that I was going to have a second gastro bypass to have a baby. I mean, it's laughable."

In 1999, the Wilson Phillips singer famously shed 150 pounds after surgery, and shed still more weight on VH1's "Celebrity Fit Club." But she packed the pounds back on after the birth of her daughter, Lola, 2, and says her main fight is to cut back on the snacking and continue exercising to lose at least 30 pounds.

Looking sensational in Chanel, Demi Moore was on a Big Apple blitz for her new diamond heist thriller, "Flawless," - and she talked exclusively to "Extra" about hubby Ashton Kutcher's ultra-revealing underwear pose in V Man magazine. "I love them," she said of the hot pics. "But I don't need to see the picture -- I get to see it everyday!" Some gals have all the luck!

Demi hit last night's after-party with 14-year-old daughter Tallulah and ex hubby Bruce Willis with date Emma Hemming. Demi said of her upcoming Ashton anniversary, "He asked me to marry him on April Fools' Day. It didn't turn out to be a joke, though -- we're five years going." The brunette beauty also told "Extra" that Ashton was pulling his famous "Punk'd" stunts on the "Flawless" set, saying, "Let's just say there was some stinky cheese left in a few interesting places!"

The mother of three looks especially gorgeous these days, but the secret to her healthy glow may leave her fans bugging out. Demi revealed on last night's "Late Show with David Letterman" Keep Reading...

Put on too many pounds? Try a pineapple... workout, that is! "Extra" has the skinny on a sweet new fitness trend that will help you shape up this spring.

For more information, click here.