Insta-Gala: The Best 'Grams from Katy Perry to Katie Holmes

The Met Gala was a night filled with beauties, ballgowns, and bathroom selfies (as well as beauties in ballgowns taking bathroom selfies). While social media might have been banned inside the museum, that didn't stop the stars from sharing their pre and post snaps. Here we take a look at some of the best Instagrams of the night, from inside Katy Perry’s wig collection to Bieber, Bieber, and more Bieber.