The sexy back workout came in at number 11, but we just couldn't resist giving it an honorable mention. Why? Because a strong, toned back does more than allow you to look your best in the most revealing dresses, it's also a key to perfect posture and preventing back pain—a problem that affects more than 80 percent of Americans at some point in their lives. These exercises target your entire backside and your core to help counteract "computer back" and build a posterior that turns heads.
Click here to get the full workout routine.