Margot Robbie
Credit: Mike Marsland/WireImage, Frazer Harrison/Getty Images

She rolled in to the 2014 ceremony as a brunette, but for this year's Academy Awards, Margot Robbie has got a brand new bob! To complement her daring Saint Laurent Paris number, the star chopped her long layers into a shoulder-skimming lob. The star has been keeping her hairstylist busy over the past year---not long after she went solid brunette, she shifted to a warm auburn hue over the summer, only to return to her trademark blonde. Paired with her statement red lip, we can't help but feel the Monroe-esque vibes, and if there's any event the star should channel her inner Marilyn, it's the Oscars!

See even more of the best red carpet looks from the 2015 Oscars in our gallery!

Plus, let us know what you think of Robbie's new 'do by voting in the poll below.