Since her breakout role in The Wolf of Wall Street, Margot Robbie has put her sartorial stamp on the fashion world. Stepping out in one killer designer ensemble after the next, the Aussie actress is a knockout whether on the red carpet decked in couture or off-duty in polished casual staples. For her latest, Margot stunned in a killer LBD by Calvin Klein. Backless with side cutouts, the frock is the perfect melding of sexy and sophisticated thanks to its midi length. To finish it off, she donned two-tone strappy sandals, giving the black dress fashion-forward appeal. How’s that for workwear inspiration? See the look here, then continue on as we recount her best fashion moments to date.