Jillian Michaels designed a 3-month workout plan exclusively for SHAPE to get you on track for summer! Start now with the first of three routines. First warm up, then do each exercise for 1 minute in order. Repeat the entire circuit twice more. Each week, do three of these sessions, as well as two more cardio workouts. Follow this schedule for a month, then check back soon for the second workout from The Biggest Loser trainer. You'll be ready to show off your sizzlin' bod in no time!

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