Every fashion designer, fashion house, glamour magazine and fashionista are familiar with fashion week. It is an event that lasts for about a week and is held in the fashion industry's leading locations, specifically Milan, London, Paris and New York. New York Fashion Week is a huge deal in America for the fashion industry. Here is where you can discover what's hot and what's not. Neon pink at fall 2012 fashion week was one of the hot trends introduced.