Credit: Courtesy Photo

She may be an Aussie who was born in Hawaii (more on that in a bit), but Nicole Kidman tells Simon Dumenco in the March issue of InStyle, on newsstands Friday, that she’s really nothing more than a country bumpkin.

"I'm very country at heart," says the Oscar winner. "I have a real desire to be outdoors, a desire for simplicity—a slightly slower, relaxed approach to life. A community, not a big-city feel. That’s what I grew up with, and it's what I prefer."

In fact, it's a little known tidbit about Kidman that she was born on the beach in Hawaii—sort of. “I used to pretend to the kids at school that I was born right on Waikiki Beach in Honolulu," she says with a laugh. "I was actually delivered in a hospital—but it sounded good, and they believed me."

At our shoot in a two-story home in Nashville, the actress' down-home sensibility (and sense of humor) was on full display, in spite of being dolled up in the likes of Dior, Chanel, and Valentino. Kidman chatted about everything from her daughters with husband Keith Urban, Sunday, 5, and Faith, 3, her workout routine, and even nibbled a piece of our style director Melissa Rubini's organic dark chocolate from Whole Foods Market.

Up next for the 46-year-old star is the role of the beautiful and iconic princess and actress Grace Kelly in Grace of Monaco, premiering in Cannes in May. A daunting task for any actor, but if past is precedent, Kidman -- often called "fearless" thanks to taking on roles like a murderous weatherwoman in To Die For and, in Fur, the photographer Diane Arbus, who committed suicide in 1971 -- will shine. "I always try to push through fear," she says. "People always say, 'Oh, you take such risks,' or 'You're brave.' And I'm like, 'Well, if you only knew—inside I'm really frightened!"

For more from Kidman—including details on Urban’s love letters, which daughter is most like her, and her given Hawaiian name—pick up the March issue of InStyle, available for digital download and on newsstands Friday, Feb. 14.