Are you a stringbean with a slender waist who feels scrawny? Or perhaps overweight, with some extra luggage in the middle compartment? Concentrating on and developing a V-taper makes skinny guys appear much broader and creates better symmetry for folks on the heavier side.

We've asked Alfonso Moretti, C.P.T., for the must-try workout that can help any type of guy forge that coveted shape.

The muscle group to focus on: the latissimus dorsi. It's the broadest muscle group of the back and is responsible for the highly sought-after "V-taper."