Alongside Harper was fellow straight-talking coach Jillian Michaels, and despite the pair competing as team leaders, each hoping their contestants would be the ones to lose the most weight at the weekly weighing in ceremony, they seemed to share a close and loving friendship.

Michaels was a trainer on “The Biggest Loser” for seasons 1, 2, 4-11, 14, and 15. She often motivated contestants by yelling at them or insulting them. In one clip from “Fit for TV: The Reality of the Biggest Loser,” Michaels pushes a woman to keep exercising even after she vomits on a treadmill.

Bob Harper and Jillian Michaels worked together on The Biggest Loser for years. Harper was a trainer on the show for the first 16 seasons before transitioning to host for Seasons 17 and 18. Meanwhile, Michaels served as a trainer for Seasons 1 and 2, 4 through 11, and then 14 and 15.