Stars posing on the red carpet at the Metropolitan Museum of Art's Costume Institute Annual Gala on May 5 wore evening gowns that reflected the trends of the season, and the fashion story of the event was the long gown with a train. Whether long and ruffled or short and simple, most of the celebrity attendees' gowns had trains. Here's a recap of the season's trends seen at the Gala:

Trains

Transparency

Ruffles

Bright colors

One-shoulder gowns.

Pictured: Kate Mara at the Metropolitan Museum of Art's Costume Institute Annual Gala, May 5, 2008, in New York.
Photo Credit: Stephen Lovekin/Getty Images