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Steve-O, Donny Osmond, Jewel

Toby Canham/Getty Images, Denise Truscello/Getty Images, Jean-Paul Aussenard/Getty Images

ABC runs a pretty tight ship, but the inevitable leaks have sprung.

Although Donny Osmond backtracked quickly when he intimated he would be taking a turn on Dancing With the Stars next month, he's just one name on a speculative list that has included everyone from Sarah Palin and Cindy McCain to Kevin Federline and Heidi Klum.

But now alleged "insiders" are letting slip a few more names they say are sure to be called when the official lineup for DWTS' eighth season is released Sunday, starting with a realJackass.

Stuntmeister Stephen "Steve-O" Glover is apparently prepared to lace up his dancing shoes (which means he'll probably have to wear a shirt—wonder if he knows that?), according to Life & Style, which also reports that Denise Richards is getting in shape for sequins, too.

Meanwhile, In Touch has outed Jewel as an upcoming contestant.

"Jewel is so excited about being on the show," a friend of the singer tells the magazine. "She loves to dance."

Meanwhile, Ashton Kutcher's off Twittering about NFL Hall of Famer Lawrence Taylor needing to "work on his footwork" in time for an undisclosed prime-time appearance.

As always, ABC refuses to comment on casting rumors. The full lineup will be revealed periodically throughout the evening Feb. 8 during the network's prime-time programming. Dancing With the Stars premieres March 9.