The Met Costume Institute Gala in New York City always brings out the biggest names in both fashion and Hollywood, and Monday night's fete was the most star-studded one to date, with everyone from Beyonce and Blake Lively to Sarah Jessica Parker and Madonna on the red carpet.
PHOTOS: Met Gala 2011: What the stars wore
The stars took some major fashion risks, turning up in dramatic ball gowns, dresses with dramatic thigh-high slits and even royal wedding-inspired fascinators.
PHOTOS: The night's 10 biggest style & beauty trends
Among the night's best dressed were Gisele Budchen, Brooklyn Decker and Ashley Greene, while Naomi Campbell and Christina Hendricks were slammed for thier sartorial choices.
Watch the video above the see the good, the bad and the baffling!