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Heather Mills is getting her groove on with a new man.

Paul McCartney's estranged wife has signed on to compete in the fourth season of Dancing with the Stars, season-three contestant Jerry Springer announced Wednesday morning on Good Morning America.

Mills, who lost a leg in a 1993 motorcycle accident, will be the show's first contestant with an artificial limb.

The former model and land mine activist will apparently be taking a breather from her bitter divorce battle with the ex-Beatle in order to show off her moves on the upcoming season of the reality series.

Mills' competition includes former 'N Sync member Joey Fatone, who told a Florida radio station in December he was finally ready to take part in the dance series after turning the show down three seasons in a row.

Fatone said he changed his mind about going on the show because "it's kind of popular now," whereas being an aging former boy bander has gradually slipped out of vogue.

Other stars hoping to jumpstart their careers by demonstrating their cha-cha skills include former Beverly Hills, 90210 star Ian Ziering and Vincent Pastore, aka "Big Pussy" of The Sopranos, who most recently appeared on VH1's Celebrity Fit Club.

Olympic speed skater Apollo Anton Ohno (who one might think would be better suited for Skating with Celebrities) will attempt to prove he has moves both on and off the ice, while retired boxer Laila Ali, the daughter of Muhammad Ali, will aim to deliver a knockout with her footwork rather than her fists.

Country star Billy Ray Cyrus will have to show off more than his two-step in order to stay in the competition, while former supermodel Paulina Porizkova needs to establish herself as more than just a pretty face.

Basketball Hall of Famer Clyde Drexler, former Entertainment Tonight and Extra anchor Leeza Gibbons and Miss USA 2004 Shandi Finnessey round out this season's talent pool.

While Dancing does not enjoy quite the stratospheric ratings regularly generated by American Idol, its audience has been steadily increasing each season.

Over 27 million people tuned in for the third-season finale in November, in which NFL star Emmitt Smith and his partner, Cheryl Burke, triumphed over Saved by the Bell alum Mario Lopez and his partner, Karina Smirnoff.

In order to avoid direct competition with Idol, Dancing will air in a new time slot this season, from 8 p.m. to 9:30 p.m. on Mondays and 9 p.m. to 10 p.m. on Tuesday.

The fourth season kicks off with a two-hour premiere Mar. 19 on ABC.