The Hottest Celebrity Bikini Bodies

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Maria Menounos

How does the Dancing With the Stars contestant (on the beach in Miami in December 2011) stay motivated during her workouts? "I listen to high-energy music like Pitbull," she tells Us. "It gets me fired up."

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Ashley Greene

The Butter star went paddleboarding in August 2012.

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Gisele Bundchen

The Brazilian supermodel rocked a tiny two piece in Oct. 2007. "She wants it every day; we actually trained Thanksgiving Day and New Year's Day," her Tai Chai once told Vanity Fair. "There's no day off."

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Kim Kardashian

The E! star shed 10 pounds in just 10 days before hitting the Dominican Republic with the rest of her family in March 2012. "I went gluten-, dairy-, and sugar-free," she told Luxury Handbag Shopping of her slimdown plan.

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Jennifer Aniston

The Wanderlust actress (seen here in Feb. 2010) flaunted her stunning bikini bod during a Mexican, pre-41st birthday getaway with pals Courteney Cox and Sheryl Crow.

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Jessica Alba

Alba debuted her jaw-dropping, post-baby body just four months after giving birth to her second daughter, Haven, during a January 2012 trip to Mexico.

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Kate Hudson

In March 2012, the Little Bit of Heaven star showed off her super-fit physique just eight months after giving birth to son Bingham (with fiance Matthew Bellamy). According to a source, the actress danced off her babyweight, after having a private studio built in her L.A. home. "It worked . . . she has no baby fat!" the source revealed to Us.

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Rihanna

The 24-year-old Barbados native showed off her paddleboarding skills--and her amazing figure--during a trip to Hawaii in January 2012. "I love swimming, [and doing] anything in the ocean," the singer told Us about how she stays in shape. "That's very, very good for your body."

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Scarlett Johansson

The Avengers star flaunted her famous curves in a bright blue bikini during a February 2012 trip to Hawaii with boyfriend Nate Naylor.

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Jennifer Lopez

The 42-year-old American Idol host rocked a yellow two-piece during a visit to Rio in March 2012, where she sunned on a yacht besides beau Casper Smart.

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Nicole Richie

In Miami in March 2012 for a photo shoot, the Fashion Star mentor showed off her healthy-looking physique--and impressive new cleavage. "In the past, she said she wanted a lift," a source explained to Us of her decision to go under the knife. "She said breast-feeding killed what boobs she did have!"

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Jessica Biel

Justin Timberlake's fiancee tossed a football on the beach with friends back in 2006. When it comes to her bikini bod, "I have the same insecurities as every other person," Biel insisted to Look magazine in 2010, adding that to maintain her fit physique she stays away from "all the fun stuff that everyone wants to eat!"

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Miley Cyrus

Pilates devotee Cyrus (seen in Miami in Dec. 2011) credits her gluten-free diet with her recent slimdown. "Everyone should try no gluten for a week," the LOL star tweeted last month. "The change in your skin, physical and mental health is amazing." (Health experts disagree with the actress' claims and generally agree only individuals with a gluten-related disorder should give up the ingredient).

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Gwyneth Paltrow

The GOOP founder (seen here in Sardinia in July 2011) says celebrity trainer Tracy Anderson is responsible for her total transformation. "[She] completely changed my legs, butt, arms and stomach," the actress told Self last spring. "I feel better than ever too!"

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Halle Berry

The seemingly ageless actress enjoyed a Malibu beach party with fiance Gabriel Aubry and daughter Nahla in August 2011 to celebrate turning 45.

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Katy Perry

A newly red-headed Perry donned a polka-dot bikini poolside while visiting then-husband Russell Brand in Miami in June 2011.

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Selena Gomez

Justin Bieber's love--who has admitted she "doesn't work out"--rocked a sky-blue bikini to film scenes for Monte Carlo in 2010.

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Kristen Stewart

K-Stew wore an itty-bitty, white bikini in Brazil to film the Twilight saga's Breaking Dawn: Part One alongside real-life love Rob Pattinson in November 2010.

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Gwen Stefani

The No Doubt frontwoman enjoyed a walk in the sand with husband Gavin Rossdale and a camera-shy Zuma in Malibu back in August 2011. In 2007, the L.A.M.B designer admitted to Harper's Bazaar she's "always been on a diet . . . It's an ongoing battle and it's a nightmare. But I like clothes too much, and I always wanted to wear the outfits I would make."

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Britney Spears

The recently-confirmed X-Factor judge donned a neon two-piece in Brazil in November 2011 during a getaway with fiance Jason Trawick. "We love to work out," Spears told Ryan Seacrest about exercising alongside her love of three years.

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Eva Longoria

The Desperate Housewives star enjoyed a romantic escape to Marbella, Spain with possibly on-again love Eduardo Cruz back in July 2011.

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Hilary Duff

The actress/singer (photographed in Malibu in 2007)--who recently gave birth to son Luca with husband Mike Comrie--has been a hardcore pilates fan for years, keeping up her workouts throughout her pregnancy.

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Bethenny Frankel

A SkinnyGirl once more! Just three months after giving birth to daughter Bryn (in May 2010), the Bravo star hit the beach in Montauk, NY looking flawless that August. "I don't believe in diets," the former chef told Us about her balanced approach to her slimdown.

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Kate Middleton

The usually-modest royal looked white hot during a family trip to Ibiza in 2006. "Staying in shape is important [to Kate]," an insider told Us, emphasizing that she exercises for her health--not to fit into her skinny jeans.

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Cameron Diaz

How does Diaz (seen here filming a scene for Charlie's Angels in 2002) stay lean? "I guess it's just exercise, healthy diet, lots of water, lots of laughter, lots of sex--yes, sex," the actress revealed to Vogue UK in 2010.

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Lea Michele

During a March 2012 vacation with Glee costar--and real-life love--Cory Monteith, the vegan actress rocked a strappy, barely-there bathing suit. "It makes me feel really good and bright," she explained to Women's Health in 2010 of her cruelty-free diet.

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Pippa Middleton

Kate's scene-stealing little sis wore a matching white bikini during the same 2006 vacation. Middleton credited pilates with helping her get toned in time for her sister's April 2011 nuptials to Prince William. "I have noticed a huge difference in my core strength and posture," Middleton wrote of her experience with the workout.

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Paris Hilton

The hotel heiress showed off her toned tummy in June 2012.

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Jenna Dewan

The American Horror Story: Asylum actress paddleboarded in Sept. 2011.

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Miranda Kerr, Candice Swanepoel and Alessandra Ambrosio

The Victoria's Secret Angels posed poolside in March 2010.

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Audrina Patridge

The Hills hottie showed off her fit figure in April 2010. "I don't even think twice about wearing a swimsuit because it's always been a part of my lifestyle," Patridge once told Shape, "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."