Between touring sold-out arenas with Maroon 5 and coaching NBC’s megahit singing competition The Voice, Adam Levine has to keep an A-list body with an A-lister’s schedule.

His trainer, L.A.-based Harley Pasternak, accommodates him with this routine—a full-body circuit—which Pasternak says Levine “attacks” to make the most of whatever time he has. Use it to build your own sleek, athletic physique the next time you find yourself on the road or are short on time between appearances—er, appointments.

How it works

“He gets bored,” Pasternak says. “So I designed a circuit workout that’s fast, can be done anywhere—even in a hotel in Tokyo—and caters to his favorite movements,” which are functional but joint-friendly lifts that promote fat loss. These include the incline dumbbell row, reverse lunge, and superman. The workout takes less than 25 minutes.

The incline row works Levine’s lats without stressing his lower back and also strengthens his upper back, improving posture; the reverse lunge helps him avoid wear on his knees (stepping backward is easier on the knee joint than lunging forward, because there’s less risk of the knee moving past the toes); and the superman works the core, strengthening the muscles needed for everything from getting out of bed to belting out a tune.

“He’s certainly one of the most athletic and toughest people I’ve ever worked with,” Pasternak says. “If he weren’t a musician, he’d absolutely have been an athlete.”

Trainer's tip

“The most important thing about Adam’s program is not what he does in the gym,” Pasternak says, “but what he does from the moment he wakes up to the moment he goes to bed: He doesn’t sit still.” The singer logs at least 14,000 steps a day on a Fitbit tracker, which means he doesn’t have to do cardio at the gym.

Directions

Perform the exercises as a circuit, completing one set for each in sequence without rest in-between. Rest one minute between circuits, and complete six circuits total.

The warmup

Spend three minutes on the elliptical machine working at an easy pace to get warmed up. Then lower your body into a squat position by bending your hips back and pushing your knees out. (This will work your legs harder.) Go for one more minute in this position.