Kelly Osbourne on DWTS: My Body Is Going to Be "Sick"

Kelly Osbourne admits she is nervous about her upcoming Dancing With the Stars debut.

"I am so excited, but I cannot tell you how terrified I am," she said on Ryan Seacrest's KIIS-FM radio show Monday. "Dancing is something that I've always really wanted to be able to do, but never had the confidence and the technique, if you know what I mean. I'm not very graceful, so it's just something that absolutely terrifies me, and it's the main reason that I kind of wanted to do it. I wanted to do something different. I wanted to do something that scared me, and I don't think anything could scare me more."

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She said she'll find out her partner on Friday, but she doesn't care who she winds up with.

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"I'm just excited to be a part of it," she said. "A couple of years ago, I was in Chicago on [London's] West End and I was originally meant to be Roxie but when it came down to doing the dancing, I couldn't learn the dancing in time because I can't dance, so I went and did Mama Morton instead."

Though some of previous contestants have had a dancing background, "there is a good percentage of them who don't and it's fun," said Osbourne. "You make mistakes, you learn and it'll be like a team of people going on a journey together, so it'll be fun."

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She said she doesn't care if she wins, either.

"I'm not doing this to try and prove that I'm better than someone else at something," she said. "I'm doing it because it scares me."

She said she's "excited" to get in shape too.

Said Osbourne, "My body is going to get sick and be toned."