Getting bored with your little black dress? Allow us to shed some light on the latest trend in cocktail attire: the edgy, rocker-cool leather dress. We saw tons of them on the runways from designers like Calvin Klein, Derek Lam, Céline, and more — but their wearability transcends the catwalk. Whether you go with an all-leather piece like Olivia Palermo's or try the trend in a smaller way, like Jessica Alba's LBD with a leather bra top, it's a look that will definitely have you standing out from the crowd (in the best possible way). From the girlie-glam looks of Lauren Conrad and Kerry Washington to the full-blown fashion-renegade vibe given by Kristen Stewart and Doutzen Kroes, the leather dress has proven to be surprisingly versatile, especially when worn with a great pair of heels and minimal accessories. Click through to see 24 style-setters who have reinvented the LBD wheel, and then shop our editors' picks.