The Girls star looked lovely in ruby red, matching the Met Gala red carpet AND everyone's fave overly excited emoji!
The stunning Giambattista Valli gown (the designer is also the man on her arm) featured a full skirt and black embellished accents around the actress' waist, collar, and shoulders.
Allison's upswept hair and simple makeup really let the dress shine! Although it's not our favorite look, she pulls it off just fine.
[Image via Getty Images.]