Here's an easy way to prove your Louboutins are real, and not from Nine West: Buy them at Barneys on May 1 (New York) or May 7 (Los Angeles). Bring them to Mr. Louboutin himself. Give him a Sharpie. Voila! You've just stamped a pair of Louboutins with the undisputed seal of fashion approval. The signings go from 3 pm - 7 pm, and bring your book / Blackberry / travel-sized game of Scrabble, because you know there's going to be a big line.