16 Supermodel-Approved Workouts

It's easy to feel envious of supermodels, what with their washboard abs and perfectly toned gams. And, while some might attribute their physiques to a limited diet of cigarettes and Champagne -- or the gift of incredibly good genes -- the truth of the matter is that many of these ladies work extremely hard to keep their bodies, well, extremely hard. Newsflash: Models have to exercise, too. Don't believe us? We stalked Instagram to find 16 top models demonstrating how they like to stay active. It...