P90X Extreme Training System
Tony Horton's 12 extreme workouts use the science of Muscle Confusion to get you absolutely ripped in 90 days. ![]()
In the fitness industry for over 15 years, Brett has helped shape up some of Hollywood's finest physiques and traveled the globe presenting his programs.
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He was the cohost of Fit Family on Discovery's FitTV, and has appeared on The View, Good Morning America, Fox News, and the WB Morning Show. Brett is also a recurring fitness expert for many top-tier magazines, including Vogue, Allure, Elle, Shape, and Self, while his signature exercise programs have twice earned "Best of New York" awards from New York Magazine. |