The "Girls" actress' strapless, ruffled Armani Prive gown featured delicate beading that allowed her to sparkle without going metallic.
Our favorite element of co-host Amy Poehler's Stella McCartney gown (besides the striking cobalt-blue hue)? The fact that it has pockets. Practical and stunning. (Is anyone else wondering what she stashed in there?)
Leslie Mann accessorized her sunny, sequined Kaumanfranco gown with contrasting-but-on-point emerald accessories.
The "How to Get Away with Murder" actress killed it (sorry, couldn't resist) in this embellished number by Donna Karan Atelier.