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Twenty-four minutes for 30 days-that's all you need to follow Jillian Michaels Ripped in 30 workout DVD. Having made dreams come true on The Biggest Loser, Jillian promises this DVD will "make every ex you've ever had jealous" and get you in the best shape of your life-with her patented tough love and laser-sharp focus. Here's how it works:

•The DVD's got four workouts - a new one every week. Each week's routine gets higher in intensity and you'll totally believe Jillian when she sniffs the air and declares: "I smell fat burning."

•Crank out the 24-minute workout 5 or 6 days a week - hand weights and energy are all you need. Workouts are built from Jillian's "body-shredding" 3-2-1 circuits: 3 minutes of strength, 2 minutes of cardio and 1 minute of abs. Get psyched for Running Man, butt-kicking (literally!), sexy arm moves, supercharged yoga moves, new spins on lunges and plenty of planking!

•Give it your all, but don't expect perfection. As Jillian says: "Perfect sucks."

•Start plotting your routes to "accidentally" run into those ex-bf's.

Our verdict: If you don't expect coddling ("My job is to break you in half!"), the segments add up to an amazingly effective boot-camp workout, with moves that work multiple muscles at once. Trust us: you'll need the rest day.

Bonus: The DVD includes a URL for a 30-day meal plan to optimize results. It's stocked with grab-and-go options (like Subway!) and tons of snack ideas (from smoothies to PopChips to turkey jerky).

Blogger Melissa Pheterson

Melissa Pheterson is a health and fitness writer and trend-spotter. Follow her on preggersaspie.com and on Twitter @preggersaspie.