Rachel McAdams Wearing a Blue Dress February 2016

Just like her Mean Girls character Regina George, Rachel McAdams could easily convince us to follow a number of fashion trends — and last night's look definitely proved that. Attending a private dinner for Vanity Fair and Barneys New York, the star wore a statement-making blue dress by David Koma that simply took our breaths away. Not only were the cold shoulder and the statement sleeve two big styles we saw at NYFW, Rachel proved that off the catwalk, they're completely wearable.

Perhaps it was the fact that the piece was all one colour, not overpowered by a loud design. Or maybe it's because she kept her accessories simple, skipping out on a necklace and wearing a few silver rings instead. Whatever the case, prepare to fall in love with the look from every angle. Then, see which stars are already wearing Autumn '16 designs.