Core, core, core. This flow is almost all core exercises. You'll be pushed to the limit with different on-mat exercises to fire your abdominals up. Expect some longer static holds. Then, I'll challenge you to apply that same activation and work into some quick, fast-paced, powerful standing sequences. End back on the mat where you started and give it your all to finish out with some sharp, quick movements. You'll definitely feel this one tomorrow. The playlist features songs from Lorde, Lana del Rey, and Martin Garrix.