OK! GALLERY: Curves Make a Comeback

Finally at peace with her voluptuous shape after years of counting calories, Jessica Simpson has become an ambassador for curvy girls everywhere. "There's something empowering about curves," Jessica tells OK!. "You can't strut when you're skinny."

OK! GALLERY: JESSICA SIMPSON SPREADS SMILES FOR OPERATION SMILE

Jessica's not alone. Stars including Beyoncé and Mariah Carey are embracing their natural body types. "I'm not a naturally stick-thin girl," shrugs Beyoncé, who says you are "fighting a losing battle to try to drastically change your shape."

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Women like Kim Kardashian and Beyoncé, who eat healthfully and stay active, are ideal role models for other women with hourglass shapes, says Dr. Milano: "Kim takes great care of her body and Beyoncé gets a great workout doing her greatest passion, performing."

Another benefit to a fuller figure: "A study recently showed that men respond to more voluptuous women," says Dr. Milano. Not only do men love the look, but they can be attracted to the attitude that goes with it.

OK! NEW: KIM KARDASHIAN SHOWS & TELLS GIRLS TO EMBRACE THEIR CURVES

However, "It's so much sexier to not care what other people think," explains Dr. Milano. "Embrace what you have and be self-confident."