According to the illustrious Adrienne Gunn, a leotard is just a swimsuit you can dance in. It's a simple one piece garment that covers the torso and butt areas (front and regular). It is beloved by dancers, gymnasts, jazzercisers, and figure skaters. And apparently, by current pop culture. Leotards are suddenly all over the place, from the Emmys to HBO’s new series, The Deuce.