Andrew Gn
Who’s worn it: Emmy Rossum, Emma Stone, Jessica Chastain
Who he is: Gn hales from Singapore, is pronounced like “Jen” and has done stints at Ungaro and Balmain (where he lasted only one season). Quickly after launching his own line, he became a red carpet mainstay thanks to impressively-constructed gowns that are at once feminine, flattering and statement-making.