Known as one of America's toughest trainers, Jillian Michaels offers an abdominal workout that features both core-focused cardio circuits as well as more traditional abdominal exercises. The program includes two dynamic 30-minute workouts meant to be implemented over a six week period. Tracie Cooper, Rovi

Jillian Michaels: 6 Week Six-Pack 2010,

UPC: 031398125136