Lauren Conrad's Do-Anywhere Workout

In the seven months that celeb trainer Jarett Del Bene has been working with Lauren Conrad, she's dropped body fat, firmed up, and discovered just how energizing it is to finish a challenging routine. "In my opinion, if you're not sweating, you're not really working out," says Del Bene, whose exercise DVD, Look Like a 10, Feel Like a 10, comes out this month (a portion of the proceeds will benefit the TUFF Foundation, Teaching Underprivileged Families Fitness, the charity he co-founded). He gets Lauren "glistening" with 30- to 60-minute circuit training sessions that use free weights or bands. "We do something different every time," he says. Achieve your own firming results with these six moves from Del Bene. They'll target every major muscle in just 20 minutes.

The plan
How it works: Do 3 sets of 12 to 15 reps of each move in order 2 or 3 times a week. Rest for 30 seconds between sets.
You'll need: a handled resistance tube, a resistance band, and a mat (optional).

1. Squat and press
   Works legs, butt, and shoulders
   Stand with feet shoulder-width apart and loop the center of a resistance tube under your arches. Hold a handle in each hand next to shoulders with palms facing forward. Bend knees, lowering hips until thighs are parallel to the ground [A], then rise up as you press your hands overhead [B]. Return to start position and repeat.

   A	B

2. Row
   Works back and biceps
   Sit on the ground with legs extended and loop a resistance band around your arches. Hold an end of the band in each hand and sit with torso tall, chest high, and shoulders back. Extend arms in front of you, palms facing each other, and wrap band around hands until it's taut [A]. Keeping chest high, draw hands toward lower part of rib cage [B]. Extend arms again and repeat.

   A	B