Now we understand why so many men (and women) fall for the lovely Rachel McAdams.
The red carpet-sweeping gown featured a long, billowing train and a slim-cut bodice that showed off her enviable figure (Regina George would be proud).
Honey-coloured locks styled into pretty waves and a dark pink lip with smoky eyes completed the Canadian actress' look.
We can't help but love our favourite Canuck star!
See all the Met Gala red carpet looks here: