The 20-year-old star wore the revealing Marc Jacobs mesh dress with a nude slip underneath to give the illusion that she was naked underneath as she graced the red carpet at the Punk: Chaos To Couture exhibition launch at the Metropolitan Museum of Art.
Supermodel Kate Moss wore the same dress at the annual British Fashion Awards two years ago.
Meanwhile, reality TV star-turned-fashion designer Nicole Richie stunned guests with her new shocking silver hair.
The 32-year-old mother-of-two is thought to have sprayed her former honey-coloured hair silver for the punk-inspired bash. She looked elegant in a pretty white and silver embellished Topshop dress.
Take a look at our best and worst dressed stars - including Emma Watson and Kristen Stewart - at the 2013 Met Ball here: