Every awards season, dozens of gowns roll out onto the red carpet: metallic, sheer, strapless, backless...you name it. But only a few are sartorial standouts to last the ages. From Taraji P. Henson's new take on Old Hollywood in 2017 to Gwyneth Paltrow foreshadowing Millennial Pink in 1999, here are the most iconic dresses in Oscar history.