Born on February 18, 1974 in Los Angeles, California, Jillian Michaels is personal trainer who became famous for her stern disciplinary techniques on The Biggest Loser. Though she was overweight during her teenage years, she was able to overcome her weight issues, thanks to her mother, who encouraged her to take martial arts classes. Since then, she has dedicated herself to helping other people with weight issues.
Michaels, who already announced that The Biggest Loser's 11th season would be her last, is also the star of the spin-off series Losing it with Jillian, where she helps transform the lives of various families.
Aside from her TV appearances, Michaels is also a celebrity adviser to National Day of Dance for Heart Health, a co-owner of Empowered Media, LLC and has a video game called Jillian Michaels' Fitness Ultimatum for the Wii.