Tone amp; Shred Bikini Body with Karena, Katrina and Jillian Jillian Michaels ndash; 24m Tone and Shred is the first collaboration between Jillian Michaels and Tone It Up exclusively for FitFusion. The three-series workouts includes Tone amp; Shred Bikini Body, Tone amp; Shred Bikini Booty and Tone amp; Shred HIIT amp; Core. Each of the 25-minute workouts combine techniques from the most popular and powerful fitness modalities - HIIT, Yoga, Pilates, dynamic resistance ...