Quinton “Rampage” Jackson will not fight Rashad Evans at UFC 107 because he will play the role of B.A. Baracus, the character “Mr. T” popularized, in the new “A-Team” movie. Because of the filming, Rampage will not have sufficient time to prepare for his fight with Evans. This puts a damper on the highly anticipated showdown between the two coaches of the two teams in The Ultimate Fighter 10.

Rampage’s decision to opt out of UFC 107 lets down his hometown fans in Memphis, where the fight is slated to be held. It also puts down the tradition of The Ultimate Fighter coaches battling it out in a UFC cage after their stint as coaches end.

UFC President Dana White is currently unavailable for comment, though he has once expressed his distaste for MMA fighters taking on movie roles in the prime of their careers.

Quinton “Rampage” Jackson is a standout in the UFC and MMA, accumulating wins over big stars like Chuck “The Iceman” Liddell and Wanderlei “The Axe Murderer” Silva.

Paula Abdul is not going to compete despite rumors to the contrary. (She’s not going to guest star on ABC’s “Ugly Betty,” either, but TMZ is reporting that the network is still looking to get in the Abdul business and is considering a number of other options, including a variety special.)

So who will be vying for the ballroom’s top prize? Kelly Osbourne, daughter of Ozzy, pop singer and former reality star, will find out if her theater experience gives her an advantage. In 2007, she starred as Mama Morton in a West End production of “Chicago.” But she’ll likely face some stiff competition from R&B singer Mya, who began her career as a professional dancer. It should be interesting to see what dynamic another musical artist, raspy-voiced Macy Gray, adds to the race.

Donny Osmond will make his “Dancing” debut to see if he can outlast sister Marie, who came in third during the show’s fifth season.

Among the season’s actors-turned-movers-and-shakers are “Entourage’s” pushy publicist Debi Mazar; former teen witch Melissa Joan Hart; Ashley Hamilton, son of George Hamilton (and ex-husband of Shannen Doherty); and Polish model-actress Joanna Krupa, who most recently competed in ABC’s summer reality series “Superstars.”

Keep an eye on what kind of fancy footwork former Texas Congressman Tom DeLay has to offer. DeLay was indicted for money laundering in 2005. (Could this be a Rod Blagojevich move? Ex-politician turns to reality TV for a little image rehab? Perhaps.)

As is tradition, several pro athletes also will try on their dancing shoes: Swimmer Natalie Coughlin, who has 11 Olympic medals under her belt; former Dallas Cowboys wide receiver and football Hall of Famer  Michael Irvin; professional snowboarder Louie Vito; and former Ultimate Fighting Championship lightweight champ Chuck Liddell.

And rounding out the competition are Aaron Carter, younger brother of the Backstreet Boys’ Nick Carter; former supermodel Kathy Ireland; and the chairman of “Iron Chef America,” Mark Dacascos.