It's finally here! The Met Gala is one of the biggest nights in fashion, and tonight will not disappoint. Anna Wintour and Vogue Magazine cohosted the event with the newly married Carey Mulligan. Mulligan was stunning in a metallic paillette fishscale haltherneck dress that flashed gold or silver depending on the light and angle. This is truly a dress you need to see in motion, which you can here on the Vogue Web site where the event was livestreamed. Mulligan's gown was of course Prada - because this year's exhibit honors Miuccia Prada and Elsa Schiaparelli in "Impossible Conversations." Rumor has it Miuccia had a difficult time deciding who would have the honor of wearing her designs to the event, and Mulligan helped her narrow it down.

We're sure Wintour was at the top of the list, a long white Prada gown with an intricately detailed lobster applique, which she wore with a white fur cape. Other celebrities in our first gallery include Coco Rocha, Elizabeth Banks, January Jones, Scarlett Johansson, Emma Stone, Grace Coddington and Zac Posen with Amber Heard. Click through to see what they all wore!