Katy Perry Shows Off Killer Beach Bod in Strapless Tie-Dye Bikini

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For her afternoon spent poolside Friday, Katy Perry rocked an itsy-bitsy, teeny-weeny, yellow polka -- er, tie-dye bikini.

On vacation with pals in Miami, the pop star, 27, flaunted her amazing curves in a strapless black-and-yellow two-piece. Perry accessorized her swimsuit with oversized black sunglasses and a long, silver pendant necklace.

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Katy Perry in Miami Beach, Florida on July 27, 2012.
Credit: INFphoto.com

One day earlier, Perry went with a classic, super-sexy black bikini to hang out with her friends and check out the new issue of Blackbook magazine, which features Robert Pattinson on its cover. (In the interview, conducted pre-cheating scandal, Pattinson discusses the rumors he plans to wed Kristen Stewart!)

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Katy Perry in Miami Beach, Florida on July 27, 2012.
Credit: INFphoto.com

Since splitting from ex-husband Russell Brand earlier this year, the "Part of Me" singer has been making the most of single life. In addition to casually dating Florence and the Machine rocker Robert Ackroyd, she's also been enjoying nights out in Los Angeles with John Mayer.

VIDEO: How to create Katy's retro hairstyle

On June 19, Perry and Mayer spent the evening together at Soho House in West Hollywood. Says an onlooker, "They were affectionate, holding hands and cuddling!"

How Miley Cyrus Maintains Her Super-Slim Figure

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Miley Cyrus may be the only girl who can say she never experienced those awkward teen years! The newly engaged actress/singer is looking better than ever and she isn't afraid to flaunt it, often leaving the gym rocking those crop tops! We may not be a pop star or engaged to her Hunger Games fiance, Liam Hemsworth, but we can certainly stay in shape and tone up with a similar fitness routine!

Just Dance

Lean, mean dancing machine! Dancing is a fun way to burn calories, tone up, and stay fit! When touring, Miley benefits from long hours in rehearsals and on stage. Try this dance workout from celeb trainer Tracy Anderson for a fun way to break a sweat.

Sip Smoothies

It is no secret that a proper diet and exercise go hand in hand with Miley's flat abs. Smoothies are a quick and nutritious solution for a post-workout snack! For bikini-ready abs, try this detox smoothie recipe.

Bike Rides

Biking is perfect for running quick errands and burns over 100 calories every 15 minutes. It beats sitting in traffic or risking a parking ticket!

Power of Pilates

Cyrus is often seen leaving Mari Winsor Pilates several times a week, proving that this core workout is a key factor in her hot body and toned abs.

Partner in Crime

No need for a fancy steak dinner. The newly engaged couple are often seen going on hikes, walks, and even taking Pilates classes together. How's that for date night?

Related Links:

More Celeb Couples Who Love to Workout Together

15 More Starlets Who Choose Pilates

What Ryan Lochte and More USA Olympians Eat, Both On and Off the Clock

Rock-Star Legs: How Beyonce, Katy, and More Songstresses Stay So Fit

Wow! Jada Pinkett Smith, 40, Flaunts Hot Bikini Bod

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Forty and fabulous!

Jada Pinkett Smith shared a hot bikini photo with her Twitter followers on Saturday and an inspirational message to her fans. 

"To my Forty and over crew!" she tweeted. "Don't believe the hype . . . we do get better with age!"

In the sexy photo, Will Smith's wife and mother of Jaden, 14, and Willow, 11, walks out from the ocean dripping wet, revealing her toned abs in a colorful string bikini.

Pinkett recently shared her secret to maintaining a flawless bod with Essence magazine, explaining, "I don't eat for pleasure." The Madagascar 3: Europe's Most Wanted star said she "had the only West Indian grandmother that could not cook. She was an awful cook, and she taught me that you don't eat for taste, you eat for nourishment. And I have kept that over the years, so I can eat anything that's healthy."

VIDEO: How Will surprised Jada on her 40th birthday

The actress also recently told Us Weekly that she's eager to get back in the spotlight. "I'll definitely be doing more on-screen acting. My kids are older now, so they're doing them," she explained. "And now I think I have an opportunity to do a little bit more."

Step Up Revolution Star Kathryn McCormick's Top 3 Hot Body Tips

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Kathryn McCormick first wowed audiences as a finalist on FOX's So You Think You Can Dance in 2009 and now the star is taking her moves to the big screen as the female lead in Step Up Revolution, out now.

"I take three dance classes a day!" McCormick, 22, tells Us Weekly of her stay-in-shape plan when she isn't filming. But getting a lean physique doesn't require quite as much time. Here, the actress shares her top three novice-friendly advice to achieve a dancer's bod.

1. Adapt your diet. The Georgia native used to eat corndogs -- until a pal introduced her to vegetarianism. Now meat- and dairy-free, she credits her organic diet with keeping her 5-foot-5 body fueled for workouts: "When I eat better, I perform better," she tells Us.

2. Work your core. McCormick takes Pilates-inspired Gyrotonics to strengthen her abs: "It challenged my body," she says. "No more weak spots.

VIDEO: Easy to follow celeb diet tips

3. Start dancing! "Dance is a physical and mental workout," McCormick (who convinced boyfriend Kameron Waters to take a hip-hop dance class) advises trying beginner ballet: "Once you get your body moving, you'll see a difference."

McCormick's Step Up Revolution is in theaters now.

PIC: Lady Gaga Goes Totally Nude in Racy New Photo

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No crazy costumes here, but Lady Gaga still found a way to go over the top on Thursday.

The "Born This Way" singer, 26, posed totally nude in a grainy new photo she shared on her Little Monsters fan site Thursday.

"Resting after Barney's Gaga Workshop opening in NY," reads the caption beneath the pic, in which Gaga (real name: Stefanie Germanotta) curls up in an armchair without a stitch of clothing on save for a flesh-colored thong.

(The Grammy winner seems to have posed for the shot late last year, when her Barney's Workshop opened up as a pop-up store in NYC for the holiday season.)

VIDEO: Does Gaga have better style than this pop superstar?

But Gaga (currently traveling the world for her concert tour) has more than just her svelte bod to show off: She just landed her very first film role as La Chameleon in director Robert Rodriguez's new film Machete Kills.

"Yes its true, I will be making my debut as an actress ln the amazing MACHETE KILLS BY @RODRIGUEZ IM (sic) SO EXCITED!!! AH! Filming was insane," the star tweeted.

Tell Us: Do you think Gaga will make a good actress?

 

PIC: AnnaLynne McCord Rocks Super-Sexy Black Bikini on 90210 Set

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Working hard while soaking up the sun!

AnnaLynne McCord went to work on Tuesday with her fellow female castmates of 90210, and she evidently hasn't skipped a beat in maintaining her bikini body this summer.

On the Beverly Hills beach set, the modelesque star showed some serious skin in a skimpy black bikini with Brazilian-style bottoms and a teeny black halter top.

The 25-year-old actress opened up to Self last spring to dish on her non-traditional exercise regimen she used to keep her long and lean figure.

"I'm not the treadmill girl--I like to do things that are outdoorsy," she told the magazine, adding that kayaking is her favorite workout for her core and upper body. "And I just started doing Taekwando, where I work with a grand master, and Brazilian Jiu-Jitsu."

Although her bikini body may appear perfect, McCord knows the importance of embracing her flaws too. In May, she tweeted a photo of herself without makeup, blemishes and all.

"I woke up this morning and decided I'm over Hollywood's perfection requirement," she wrote alongside the pic. "To all my girls (and boys) who have ever been embarrassed by their skin! I salute you! I'm not perfect--and that's okay with me!"

Audrina Patridge Poses Poolside in Teeny Bikini

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Audrina's itty bitty bikini!

This past weekend, Audrina Patridge traded the Beverly Hills sun for a wild East Coast "Liquid Sundays" pool party where she made sure to show off her killer assets in a sexy two-piece.

While sunning herself at the Foxwoods Resort Casino-hosted event in Ledyard, Conn., the Hills alum, 27, splashed around with friends and fans, munched on poolside snacks and sipped special Crown Royal cocktails. She complemented her black and white bikini with a layered necklace, aviator sunglasses and several rings.

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Audrina Patridge
Credit: Courtesy of Elevate Communications

But besides great accessories, one thing that Patridge always has on full display is her bikini-body confidence -- something that she never almost never has doubts about.

"I don't even think twice about wearing a swimsuit because it's always been a part of my lifestyle," she told Shape magazine last year, "but I have girlfriends who are so afraid to show their bodies. They won't take off their towels at the beach or pool. It's a shame because everyone can look good in a suit."