Last night's Costume Institute Gala afforded the biggest names in fashion, film and music the opportunity to dress in step with the theme of the Metropolitan Museum of Art's current fashion exhibit. "Punk: Chaos to Couture" inspired everything from dyed hair to ripped tights, barely-there dresses to elegant gowns, studded jackets to goth makeup. Here, a look at the range of couture - and guts - on the red carpet.