A Look Back At 100 Of The Best Met Gala Costumes In Celebration Of The 2012 Event: Kate Moss, Blake Lively and more!

The Metropolitan Museum of Art Costume Institute Gala is on in New York City today (their Monday night), and it is quite possibly the biggest and most extravagant fashion event of the year. A night when the best and brightest of the industry come together to celebrate the museum's exhibit (it's commonly referred to as the Oscars of the East Coast) — celebrities, models, and designers always bring their sartorial A-game to the corresponding red carpet. From Blake Lively's amazing blue Marchesa mini and Michelle Williams' Miu Miu gown, to the unforgettable metallic Marc Jacobs frock and turban Kate Moss wore in 2009, and Sarah Jessica Parker's tartan Alexander McQueen number; we've rounded up 100 of the most memorable Met Gala looks over the years. So before we fete Elsa Schiaparelli and Miuccia Prada in a mere few hours, let's take a look back at some of the statement-making ensembles that have hit the steps.