Kathy Griffin's Diet Secrets: "Frustration and Starvation"

Credit: Jon Kopaloff/FilmMagic

Kathy Griffin admits, "My body is slammin'."

But maintaining those curves is not exactly easy. Her diet?

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"It's frustration and starvation," the comic, 49,  told E! News at Sunday night's Grammy Awards.

"I'm hungry all the time, and I'm cranky," added Griffin, who donned a gold sparkly Carolina Herrera gown she purchased from a sample sale and Chanel jewelry.

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One hot body she has admitted she can never measure up to?

"I've come to terms with the fact that I'm never going to be Jennifer Aniston," she once told Fitness magazine. "I spent too long trying to get a body like Jennifer Aniston. It never worked. I had liposuction, and everything else. Then I realized, oh, what if I just ate better and exercised."