Shape partnered with Nike to bring you this "Power Boost" audio workout designed to tone your entire body and improve your strength and stamina. Serena Williams coaches you every step of the way, encouraging you through several speed bursts that are interspersed with sculpting moves. With energizing music by Lady GaGa, 50 Cent, Keri Hilson, and more, you'll stay motivated until the end. Developed by award-winning fitness instructor Jay Blahnik, the coached workout can be shortened to 20 or 30 minutes for days when you're limited on time.

Click the iTunes button below to purchase Serena's workout now!

Various Artists - Serena  Williams' Power Boost - Serena Williams' Power Boost  (Continuous Mix)


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