"She's landed a spot on the hottest show," "a friend of Marla's" told In Touch. "She's in great shape, so dancing is only going to make her look even better."
In addition, the friend told In Touch that Dancing with the Stars' producers are hoping The Apprentice star will appear as a member of the show's studio audience to watch his ex dance -- a scenario that seems highly unlikely.
Maples was Trump's second wife, as the two were married for more than five years and had one child together in 1993 -- their daughter Tiffany -- before getting divorced in 1999.
Last Summer, Maples appeared in ABC's Ex-Wives Club, a reality series that helped recent divorcees rid themselves of everything reminiscent of their former significant other in an effort to move forward with their lives. She appeared in the short-lived show with Angie Everhart -- the secret saboteur of ABC's Celebrity Mole Yucatan -- and the former Mrs. Kevin Federline, Shar Jackson.
According to a December In Touch report, former Will & Grace actor Sean Hayes may also be a part of Dancing with the Stars' sixth season cast. In addition, E! Online gossip columnist Mark Malkin reported last week that Elvis Presley's ex Priscilla Presley has "signed on, or is close to signing on" to the show's sixth-season cast.
Dancing with the Stars 6 will premiere Monday, March 17 at 8PM ET/PT on ABC. As in previous seasons, the network is not commenting on sixth-season casting reports. ABC is expected to formally announce the season's cast later this month.