Get Kirsched with America's most famous health and fitness guru, who shares some of his body-shaping secrets with his "Fit and Fierce" SHAPE workout.

David Kirsch has sculpted celebs Heidi Klum, Faith Hill, Sophie Dahl, Bridget Hall, Ellen Barkin, James King, Liv Tyler, Kerry Washington, Karolina Kurkova and Linda Evangelista to name a few. He is the man when it comes to getting in phenomenal shape, fast.

Created by: Celebrity trainer David Kirsch of David Kirsch Wellness.

Level: Intermediate

Works: Abs, shoulders, chest, glutes, arms, legs, hamstrings

Equipment: Exercise Mat; hand weight; swiss ball; step; dumbbells

How to do it: These moves work the abs, shoulders, chest, glutes, arms, legs and hamstrings. All exercises should be done in a circuit. If you're at 'expert' level, complete 3 circuits; 2 if you're at 'intermediate' level.

Click here to get the full workout from David Kirsch!