Mariah Becomes "Cosmo" Cover Girl

November 7 [7:55 EDT] -- Mariah Carey will join the ranks of the few non-models to grace the cover of "Cosmopolitan" magazine with the release of the publication's December issue.

The Carey-covered issue also features an interview with the singer, but only about a paragraph or so is devoted to Carey's music. The rest of the story focuses almost entirely on her personal life, with Carey revealing that during recent acting lessons, her teacher asked her to imagine a place where she felt safe in her life. Carey says she then realized, "I didn't have one. I couldn't think back to a place that didn't give me a feeling of shakiness or some negative memory."

She also discusses her separation from her husband, Sony Music chief Tommy Mottola.

Carey says they split the cost of their $10 million mansion because, "I didn't want to be in a position where someone could ever say, 'Get out of my house.'"

She also describes weird dreams she had that have apparently come

courtesy of the melatonin she's been taking to get to sleep, and says that one such dream inspired a scene in her new "Butterfly" video in which she grabs a barbed wire fence as she chases a horse.

The December issue of "Cosmo" should arrive on newsstands next Thursday.

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