Harper's Bazaar global fashion director Carine Roitfeld gathered the unforgettable faces of her September portfolio, including Lady Gaga, Linda Evangelista, Gigi Hadid, Carolyn Murphy, Brooke Shields, Isabeli Fontana, Lauren Hutton and Joan Smalls, and more of fashion's finest for a black tie fete to celebrate the global editorial spread that ran across 30 international editions of Bazaar.