A three-time cover girl for the Sports Illustrated swimsuit issue and the grandson of an auto racing legend are among the contestants lined up for the fifth season of NBC’s "Celebrity Apprentice," reports EW.com’s Inside TV blog.

Cheryl Tiegs, 54, an iconic Sports Illustrated swimsuit model, and Marco Andretti, the 24-year-old grandson of racing legend Mario Andretti, will compete on the show, according to an insider cited in the story.

Filming on the show starts next week, with the program slated for an early 2012 debut, the piece adds. The celebrity version of the show traditionally raises money for charity, the story notes.

Cheryl Tiegs