« All Photo Galleries Met Gala 2015 After Parties

Allison Williams At Met Gala After Party

Allison Williams waved to photographers while making her way into the ‘China: Through The Looking Glass’ Costume Institute Benefit Gala After Party. The ‘Girls’ star changed out of her floor length gown into a red, knee length Giambattista Valli dress featuring a sexy cutout back for the after party.

Getty