Celeb trainer Haley Pasternak shares tips on how to get Katy Perry's sexy gams. - SharpShooter Images/Splash News  Star trainer Harley Pasternak shares with Self.com the moves that help pop star Katy Perry get those lean legs. Try them out for yourself.

Free Bikini Body Workout and Meal Plan

You'll Need: A pair of 5-pound dumbbells and a chair.

The Plan: Do 20 reps of each move in succession.

58 Ways to Burn 100 Calories Without Trying

SKATER LUNGE Stand with feet hip-width apart, toes turned out, hands on hips. Curtsy, stepping right foot back and to left (as shown) Return to start; repeat on opposite side. - Nicola Majocchie

STEP IT UP Stand to left of chair, with chair seat facing you. Place right foot on seat; step up and cross left foot behind right leg (as shown). Touch left foot to floor on right side of chair. Without moving right foot, reverse move back to start. Switch legs; repeat. - Nicola Majocchie

RESHAPING REACH Stand with legs straight and hip-width apart, knees soft, a weight in each hand. Keeping back and legs straight and weights close to body, bend forward and push butt back as far as you can (as shown). Return to start; repeat. - Nicola Majocchie 

Adam Levine's Yoga Workout

More Celebrity Features on Yahoo!:
How Whitney Port Stays in Shape on the Road
Jillian Michaels' Simple Weight Loss Tip
How to Get Jennifer Aniston's Toned Arms

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Carrie Underwood arrives at the "American Idol" finale earlier this month. - Splash NewsSheryl Crow attends the 2011 CMT Music Awards on June 8. - Mike Coppola/WireImage.comGrammy-winning crooners Carrie Underwood and Sheryl Crowmay both be in stellar shape, but that doesn't mean they don't love good eats.Both ladies have found ways to indulge in their favorite foods by creatinglighter versions of traditional recipes, which they recently shared with Selfmagazine. Read on to learn how to make Carrie's no-guilt veggie pizza and whatSheryl swaps to make a bikini-friendly potato salad, perfect for a summer picnic.

Get Fresh New Recipes from Self Weekly

Carrie Underwood's No-Guilt VeggiePizza

"I love pizza," Underwood admits. "But,obviously, pizza isn't always the healthiest choice in the world. So I make itmy own way." The star's "own way" involves dousing the pizzawith her favorite vegetables -- spinach, olives, and bell peppers -- but youcan use any veggies you like. And remember, the more the better!

Carrie Underwood's No-Guilt Veggie Pizza is made with a tortilla crust and reduced-fat cheese. - Hector Sanchez/Self  

Serves 2

Ingredients:

Vegetable oil cooking spray

I Can't Believe It's Not Butter spray

1 Food for Life Organic Ezekiel 4:9 Sprouted Grain

Zooey Deschanel shows off her sunny disposition on the cover of Self magazine. - Pamela Hanson"Most people spend too much time comparing themselves to others," Zooey Deschanel insists in Self magazine's latest issue. "Get to know yourself a little bit better. Stop and ask yourself a few questions, and think about you."

Zooey Deschanel's Guide To a Happy Life

So what's the 31-year-old star of "(500) Days of Summer" thinking about when it comes to herself these days? Plenty. In addition to her singing and acting and career -- which includes a new Fox sitcom premiering in the fall -- Deschanel says she spends her time tweeting, baking, blogging, writing, playing the ukulele, and catching "TopChef" with her hubby, Death Cab for Cutie's Ben Gibbard. Then there's her new venture, HelloGiggles.com, a humor site aimed at women for a change."There's a lot of dude comedy out there and not enough outlets for funny, creative girls, so my friends and I decided to build one," she explains.

Zooey says she can "hula-hoop" for hours ... and proved it during the photo shoot. - Pamela Hanson

Despite the packed schedule, Deschanel still finds time to exercise, of course, but you won't find

Whitney Port relies on a hotel-room exercise routine to stay in shape on the road. - Amanda Edwards/FilmMagic.comFashion designer Whitney Port, who most folks know as the former reality star of MTV's "The Hills" and "The City,"will be spending the summer traveling, going back and forth from her home in L.A. to New York for various projects, as well as making trips to Dublin, Ireland, and Miami. While that kind of busy travel schedule tends to throw akink in most people's diet and fitness routines, Port tells omg! she's not about to let it mess with hers.

"I try to work out as much as possible," she shares. "It's sort of hard when you're traveling. I try to do little routines in my hotel room, like push-ups and sit-ups and little things I can do with furniture for on the go."

When the 26-year-old is at home, she heads to the gym three to four times a week for an hour, combining weight training and cardio work, and splits personal training visits with her sister. "It definitely helps. We definitely motivate each other," she says. "We're really competitive, not against each other but we just have

Television personality Kelly Ripa, 40, is looking better than ever! - Jeffrey Ufberg/WireImage.comWhat does TV host and busy mom Kelly Ripa eat to keep her petite figure so fit? Read on to find out the healthy snacks -- and a few indulgences -- the 40-year-old can't live without.

Greek Yogurt
Kelly Ripa adds fresh blueberries and pistachios to her favorite Fage Greek yogurt for a quick and healthy treat that's good any time of the day—and always in her fridge. "I also like to make my own lavender honey. Just get dried lavender, put it in honey and let it sit. It becomes lavender infused," according to Ripa. "So you get salty, sweet, and a little tang. It's very good. It's my dessert, my breakfast, everything!"

Goldfish Crackers
Kelly Ripa always keeps a box of the adorable and delicious Pepperidge Farm crackers in her pantry. "It's a wonderful snack that I'm addicted to," she says.

Cheese
What's one thing Kelly Ripa just can't live without? "I will never give up cheese! I gave it up a couple of years ago for Lent and it was really hard," she admits. "I realized that cheese is the

Pippa Middleton participated in the GE Blenheim Triathlon in Woodstock, England, on Saturday. - Chris Brunskill/Getty ImagesIf you've been wondering since the royal wedding how Pippa Middleton scores that round-but-firm booty, you're not alone. In fact, there's an entire Facebook page dedicated to her, um, assets.But this weekend, we learned that Kate Middleton's 27-year-old sister owes her famous rear -- and physique -- to more than just great genes.

On Saturday, she crossed the finish line at the GE Blenheim Triathlon in Woodstock, England. Interested in doing a race yourself? Gain inspiration from four more celebs who have sweated it out in marathons or triathlons. 

Cross-Train with P90X

Jennifer Lopez
J-Lo's toned-yet-lean legs stole the show on "American Idol" this year. And while she gets her gorgeous gam moves from celeb trainer Tracy Anderson, the singer also participated in the Nautica Malibu Triathlon in 2008.

Katie Holmes
Mrs. Tom Cruise successfully completed the 26.2-mile New York City Marathon in 2007. At the time, Cruise told People magazine that he was "very" proud of Holmes, who trained

Jillian Michaels is embarking on a new career as co-host of "The Doctors" and a correspondent for "The Dr. Phil Show." - Jason Kempin/WireImage.comFor Jillian Michaels, 2011 just might be her biggest year ever. The professional fitness trainer, who shot to fame on "The Biggest Loser" using her tough-love techniques to help obese reality-show contestants shed hundreds of pounds, recently exited the series and announced she'll be moving to daytime TV as a co-host of the medical talk show "The Doctors" and a contributor on "Dr. Phil," a couple of new jobs she says will finally give her the chance to get her message of "You Can" out to the public, along with advice on how anyone can reach a seemingly impossible goal. "You can change anything you want to," insists Michaels. "You are capable of anything that you choose to accomplish and here is how you do it -- that message is really an important one for me."

Her latest book, Unlimited: How To Build an Exceptional Life, became another bestseller this spring, but she'sgot an even bigger achievement on the horizon. If all goes according to plan, the 37-year-old may become a first-time

Jennifer Aniston gives her yoga instructor, Mandy Ingber, credit for those toned arms. - Kevin Mazur/WireImageJennifer Aniston's perfectly sculpted arms are not the product of logging hours on the gym floor. She gives Mandy Ingber, her long-time yoga instructor, all the credit. We spoke with Mandy about her "Yogalosophy" and the exercises anyone can do to get, as she says, "a rocking body that's toned, flexible, and naturally balancing."

How exactly does yoga sculpt arms? Are there certain poses that get the best results?
"We practice a lot of sun salutes. Each time you do one, it's two to three tricep push-ups. It gives beautiful definition to the arms and shoulders. However, Jennifer and I both add cardio and toners to our regimen. My DVD 'Yogalosophy' pairs a yoga pose with a toning exercise to create a yoga workout."

Can you give us five exercises any woman can make part of her workout specifically to get toned arms?
"Sun Salutes, Crow, Plank, One Arm Balance and Table Top. [See below for descriptions.] Try 10 Sun Salutes. Balance in Crow for 30 seconds to one minute, three times. Plank