Tavi Gevinson
Started an acclaimed fashion blog? Check. Founded a magazine? Check. Gave a TED talk? Check. Acted alongside Julia Louis-Dreyfus and James Gandolfini? Check. Hung out with Vogue’s Anna Wintour? Check. Starred in a Broadway show? Check. But celebrate her 18th birthday? That’s something Tavi Gevinson managed only this past April. At 11, Gevinson had garnered…