PIC: Jessica Simpson Poses Without Makeup for Marie Claire

Glamour girl?

For the May cover of Marie Claire, Jessica Simpson went without makeup or retouching.

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The reason: To promote her new initiative, "A Beautiful Me," a program she is launching next month to encourage young women to love themselves and feel comfortable in their own skin.

"I don't have anything to prove anymore," says the singer, 29, who once admitted to getting too much Restylane in her lips. "What other people think of me is not my business."'

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Still, she tells the magazine she likes to get dolled up every once in a while. "If I'm in a mood to go out and feel hot and sexy, I want long hair that I can feel on my back," she says. "But I also like bed head."

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Although Simpson said she was thrilled to shoot VH1's The Price of Beauty -- which centers on her world travels to discover how other cultures define beauty -- viewers aren't responding. Her show's March debut attracted around 1 million people, getting beat by a show on The History Channel.