Make Your Moves

The expert:Dolvett, a trainer on NBC’sThe Biggest Loser.

He’s toned up Justin Bieber and Angela Bassett.

(If you’re wondering about his cast … bad bounce on a trampoline.

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The plan:Do three sets of each move three times a week, alternating days.

Thenstock up on short-shorts.

You’ll want to flash some leg!

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Switch legs; repeat.

Butt Lifter

Works: butt, hamstrings

Lie faceup, knees bent, feet flat.

Extend right leg toward ceiling, toes pointed.

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Squeeze glutes and lift hips to form a straight diagonal from left knee to shoulders (as shown).

Raise hips higher, then lower to floor for 1 rep. Do 15 reps. Switch legs; repeat.

Video: JoJo and Dolvett demo each move.

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Hold for 3 seconds, then lower heel for 1 rep. Do 15 reps. Switch legs; repeat.

Rotate to center, stepping right leg back to meet left.

Step left leg into a forward lunge.

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Push off floor immediately, jumping as high as you could (as shown).

Land in a lunge with right leg forward for 1 rep. Do 15 reps as quickly as possible.

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Image may contain Human Person Exercise Sport Sports Working Out and Fitness