Although she's only 15 years old, Millie Bobby Brown is already making waves in the fashion world, thanks to her fun and fearless approach to red carpet style. She flip-flops between frilly and feminine looks and more androgynous styles, and already has top flight designers clamouring to dress her for big red carpet occasions. We adored her custom bubblegum pink Rodarté at the Stranger Things season 3 premiere, and she looked incredible in a black and gold Oscar de la Renta gown at the premiere of Godzilla. Later in the year, her fun off-the-shoulder Givenchy dress for another Stranger Things event was another highlight.