No-nonsense trainer Jillian Michaels (from the hit reality show "The Biggest Loser") leads this easy-to-follow exercise video geared toward teenage girls. The routine -- a fun, hip-hop cardio workout -- will help melt away those nagging excess pounds. Michaels, who's no stranger to weight loss struggles, also provides information about nutrition and healthy eating, and talks candidly to girls about body image and other fitness issues.