‘Insanity’ workout creator Shaun T’s tips for staying fit during the holidays

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Celebrity fitness trainer, motivator and choreographer, Shaun T has created some of the world's most popular workouts -- Insanity, Hip Hop Abs and CIZE.

He's sold more than 10 million DVDs, and his exercises are now streaming to half a million viewers on-demand. That's about $350 million in sales, by the way!