PIC: Alicia Keys Shows Off Killer Curves in Tiny Bikini

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Dangerous curves ahead!

In a photo posted on her hubby's Instagram account on Friday, Alicia Keys showed off her bodacious bod in nothing but a skimpy two-piece bikini with a red top and black bottoms.

"My Bond Girl:) 007 AK47," Swizz Beatz posted next to the pic of his hot-bodied wife, whose hair was slicked back, standing in the ocean.

Keys, 31, has gone on the record saying that she is proud of her trim but curvy body.

"I'm not ashamed of what I am and that I have curves and that I'm thick," she has told AskMen.com. "I like my body."

The songstress and her record producer beau have been happily married since July 31, 2010 and welcomed son Eqypt three months later.

Rihanna Shows Off Bare Midriff in New Vita Coco Campaign

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Rihanna is proof that coconut water does a body good!

In her new ad campaign for Vita Coco, which was shot by famed photographer Terry Richardson, the "Where Have You Been" singer shows off her bare, toned midriff, which she attributes to her recent diet and coconut water!

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"I wasn't drinking enough water before, and I love coconut water," the Vita Coco celeb spokeswoman tells Us Weekly. "It hydrates me just as much as regular water so it really started to affect my diet and the way my body was shaping up."

"I also started to eat a little differently" the songstress admits, delving into the details of her diet. "I added one vegetable to each meal with my diet for awhile -- but then I went right back to eating McDonald's and pasta and stuff like that too! So really its just having a balance of eating great and staying hydrated."

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In the photos, the Barbados beauty flaunts blonde hair and sports a custom-made ensemble adorned with pineapples that shows off her slim legs and flat stomach.

"I never weighed myself so I don't know how much weight I was to know how much I lost," the singer, 24, tells Us, adding that she has noticed that she has dropped two sizes. "I haven't worked out sine January!

Rihanna's sunny new campaign for Vita Coco was unveiled on Monday, and fans can expect to see the singer's ads all over this summer.

See Maggie Gyllenhaal's Slim, Post-Baby Bod Six Weeks After Giving Birth

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Hot mama!

Just six weeks after giving birth, Maggie Gyllenhaal already seems to have her pre-baby body back.

The mother of two stepped out for a walk with a friend near her home in Brooklyn, New York on Friday. Gyllenhaal, 34, had a big smile on her face as she showed off her slim figure in a short, flirty dress.

The Hysteria actress and her husband Peter Sarsgaard, 41, welcomed second daughter, Gloria Ray, on April 19. The couple, who have been together since 2002 and married in 2009, are already parents to daughter Ramona, 5.

During her pregnancy with Gloria, Gyllenhaal joked with USA Today about wearing black to conceal her baby bump.

"I'm so pregnant!" she said. "This is a great, loose black outfit -- I had to take my shoes off."

Jessica Simpson, Jennifer Hudson and More Stars Who Love Weight Watchers

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It's official! Jessica Simpson confirmed that she's going on Weight Watchers to lose her baby weight. "So excited to be part of the Weight Watchers family!" the 31-year-old tweeted Wednesday. The new mom, who gave birth to Maxwell Drew (her first child with fiance Eric Johnson) on May 1, joins other celebs who've used the diet program successfully; read on to find out other stars who are fans of Weight Watchers!

Jennifer Hudson

The singer may be one of the diet's most successful spokespeople. Since 2010, Hudson, 30, has kept off the 80 pounds she lost following her pregnancy and credits Weight Watchers and her trainer Harley Pasternak for her success.

Jenny McCarthy

The 39-year-old joined Weight Watchers following the birth of her son, Evan Joseph, 10, and she has credited the diet plan for helping her learn portion control. Since then, the actress, author, and mom has also gone dairy- and gluten-free.

Ginnifer Goodwin

Talk about devoted! The Once Upon a Time actress has shared that she has been on Weight Watchers since she was 9 years old and continues to use the program after especially indulgent periods in her life. "It's the only thing on the planet that doesn't dehydrate you or just make you miserable," the 34-year-old has said of the diet.

Tina Fey

It took a turn in front of the cameras during the 30 Rock actress' early years on Saturday Night Live for her to decide to diet; Weight Watchers helped her lose the weight. Since then, the 42-year-old's weight-control strategy involves working out with a trainer, taking walks, and doing yoga whenever she can fit it into her schedule.

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Mila Kunis Rocks Healthy Curves on the Set of Her New Flick

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Mila Kunis famously shrunk down to just 95 lbs. for her role as bad girl ballerina Lily in Black Swan. For her new film, Blood Ties, however, she's been rocking a healthier look.

On set this week (alongside costar Clive Owen), the 5-foot-4 stunner showed off a curvier figure in '70s-style dark blue bell bottoms and a striped spaghetti-strap top. (The Guillaume Canet-directed project tells the story of two Brooklyn-based brothers who get involved with organized crime during the 1970s).

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Mila Kunis on the set of Blood Ties on May 29, 2012.
Credit: Guillermo Bosch/INFphoto.com

In March, the actress opened up to Harper's Bazaar about slowly getting her pre-Black Swan figure back.

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Mila Kunis on the set of Blood Ties on May 29, 2012.
Credit: Zelig Shaul/ACE/INFphoto.com

"My shape is different. When I got down to 95 pounds, I was muscles, like a little brick house, but skin and bones," Kunis, 28, shared. "When I gained it back, it went to completely different areas."

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Mila Kunis on July 18, 2011 in New York City.
Credit: Jim Spellman/WireImage

Since returning to her normal weight, The Oz: The Great and Powerful star revealed that, unlike many women, her butt isn't a spot that gives her trouble--though she'd be thrilled if she ended up with a little more junk in her trunk.

"I'd be happy if my ass got bigger," Kunis joked to the magazine. "All the weight that left my chest went to my side hip, my stomach."

How Whitney Port Gets Her Sexy Bikini Body

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L.A. native Whitney Port is a beach-loving California girl through and through.

In honor of beach season's official Memorial Day kickoff, the blonde stunner, 27, took to her personal website to share photos of her favorite summer memories.

Among the images posted? Pics of her grabbing ice cream with pals, boating, soaking up rays--and showing off her enviable bikini bod.

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Credit: whitneyport.celebuzz.com

At the Vans Custom Culture Contest for the Arts in Long Beach, Calif. Wednesday night, the busy reality star-turned-fashion designer opened up to Us Weekly about how she keeps up a healthy lifestyle--even when she's traveling.

"It's almost impossible!" Port--who is currently dating TV producer Tim Rosenman-- told Us about eating well on the go. "But there are always healthy options, and I feel like I'm educated on those, so I know what to order and what to eat wherever I am."

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Credit: whitneyport.celebuzz.com

And if she can't access a gym, the Britain's Next Top Model judge makes the most of whatever space she's in--including her hotel room.

"I try to do simple exercises, whether it's push-ups or sit-ups," Port shared. "I focus on keeping moving and eating as healthy as possible."

Port says the makeshift workout space suits her better, anyway.

"I'm trying to stay outdoors and stay out of the gym as much as possible," she told Us. "I'm working out on my own right now, whether it's walks or hikes!"

Kristen Bell Recruits Jenna Fischer for 30-Day Fitness Challenge

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Kristen Bell and Jenna Fischer are 30-day homies.

Bell initiated a 30-day fitness challenge on her Twitter and Fischer was brave enough to sign up with Bell's other followers. The actresses have been tweeting their complaints and messages of support as they try to reach their workout goals.

Bell, 31, explained the rules as, "Just a challenge to be active for one hour per day for 30 days. Walking, DVDs, exercise class, jog etc. We complain together!"

And complain she has!

"Spinning is the hardest thing for me," Bell tweeted on day 12. "I am by far the worst in my class, which is hilarious and embarrassing. I cried during the cool down because I was exhausted, annoyed and stunned at how infectiously nice everyone in class was. Clearly, I needed a minute. Don't give up. Let's hit 30 together."

"Dear 30-day homies -- Today was terrible," she tweeted Wednesday on her 16th day of the workout challenge. "I went to a bar method class today which I normally love, but my equilibrium totally wet the bed. I barely had balance or energy -- all I was thinking about was what's on my TiVo -- and I honestly only did the exercises if the teacher was looking at me. I zoned out for minutes at a time. The other students must have thought I was on drugs. Oh well, there's always tomorrow. How are you all doing? Love, the captain."

Fischer, 38, who gave birth to her son Weston last September, joined Bell's challenge last Friday. "Okay, I'm on board!" the Office star tweeted at Bell. "So far this week: weights, yoga, hiking, hiking, weights. I'm thinking ab DVD tomorrow. 30-day homes."

"Go get 'em Jenna!" Bell wrote in support. "Griffith park hike is rad, and also bar method classes. We are now 30-day homies."

Fischer has previously chatted with Us Weekly about the pressure of losing the baby weight. At the Screen Actors Guild Awards in January, Fischer told Us, "Let me please stand in solidarity with all of the women who are not a size 2 six weeks after leaving the hospital. I am breastfeeding my baby and I am not getting any skinnier!"

Now, the new mom is finding ways to balance her workouts with motherhood. "Baby would only nap if I held him. Teething. Spent 2 hrs in a rocking chair. Still got in 40 minutes of cardio and 20 minutes of abs! Proud," she tweeted to Bell.

And Bell has been tweeting helpful advice to her fellow 30-day homes along the way.

"The only way your body metabolizes fat efficiently is if you're hydrated! she wrote. "Your Body rids itself of fat through sweat, C02 and urine. So make sure to drink lots of H20 and pee a lot!"