Model Coco Rocha showed off a spectacular gown with a full train in undulating shades of blue at the 2010 ball. The decadent tie-dyed confection was the creation of young American designer Zac Posen.
Iconic Met Ball Gowns
Each spring the brightest stars of the fashion, film, and society worlds turn out for the Costume Institute's Met Ball in New York. And this year, TIME looks back at the 15 best dresses at the Ball since 1995.