Whether fashion is a personal statement, a cultural expression or a worthless indulgence, we may never know. Nonetheless, in the wake of Fashion Weeks in New York, Paris and London, no apologies are necessary for a perverse fascination with the biannual festival: all the glamour, the parties, the train wrecks and the convergence of some of the world's most cracked-out, ridiculous individuals. So sit back and learn what you're going to like next spring. It's all very "Big Brother." And very sexy.