Sometimes it's sexy to have a little something-something spilling out the top of your bra. Unfortunately, it's only sexy when that something is on your front. Back fat, that extra roll on top of or just below your bra strap, is the kind of cleavage we all could live without.

Of course, as you well know, sans lipo, that annoying little roll isn't going anywhere without a fight. And doing exercises only for that part of the body isn't going to cut it. Back fat, like fat anywhere else on the body, only disappears when you burn more calories than you consume.

Fortunately, we've discovered three ways to cheat the system. These exercises can't make fat disappear, but they can give you muscle tone. A muscular back is firm, sexy and key to giving you a leaner physique. A well-developed upper back gives you that coveted V-shape that makes your waist and hips look slimmer. (Remember those oversized shoulder pads from the '80s? Same theory.) And a strong back makes good posture possible. Your mom was right: When you stand up straight, you look 10 pounds lighter.