India, Jan. 16 -- The Vanity Fair Oscar After Party. Ok, the Oscars are handed out. The speech tears dry. Then, the corsets are loosened, and everyone starts to chill. Designers dress celebs in more comfy looks for this post-awards A-list meet-and-greet. Margot Robbie has worn vintage Versace; Kendall Jenner has worn sheer archival looks that would never survive the main carpet. The real party doesn't happen at 5pm; it happens at 9pm.

Heidi Klum's Halloween Party. Klum is German. When she realised that the American summer and year-end party calendar was already full, she just picked Halloween and built a party around it. It's fashion's most unhinged costume event: Full-body prosthetics, body paint, total transformations. This year Kourtn...