A lean, sculpted back is definitely sexy -- just check out celebrities like Angelina Jolie who walk the red carpet in their slinky plunge-back numbers. A strong back is also essential for good posture, which not only makes you look, but also feel, better.

So whether you're planning to wear a halter gown for your wedding or a strapless LBD at the year-end party, try these five moves that target and tone up your back to give you that sensual back view.

1. Cobra

Targets: Lower back
Reps: 8

1. Lie facedown on the floor with your arms at the sides, palms down.
2. Slowly lift chest off the floor, raising arms up and back and legs off the floor at the same time. Hold for 3 counts then lower to starting position.

2. Dumbbell shrug

Targets: Upper back
Reps: 8

1. Stand straight with your feet hip-width apart, knees slightly bent, arms at your sides holding a dumbbell in each hand, palms facing in.
2. Slowly raise your shoulders up toward your ears, keeping elbows straight. Hold for 3 counts then lower to starting position.