Watch now: Hopefuls audition for the new season of "Dance Your Ass Off."

The series returns for a second season after proving a hit last year with audiences -- while trimming down the contestants! In this audition round of the Oxygen network show, the compelling personal stories of struggle will be highlighted, like that of Gianni Mercedes Jackson.

Gianni has battled with her weight since childhood, a problem only worsened with the recent death of her boyfriend.

Watch the video for more with Gianni and others vying for a spot on the show.