Millie Bobby Brown was one of the coolest teenagers at the MTV VMAs. The Stranger Things actress looked absolutely as she attended the award show on Sunday. Wearing a fashionable black jumpsuit, the 14-year-old had a a little fun with the cameras as she playfully stuck her tongue out and gave a wave. And the fun only continued inside! During the show, Millie was caught fangirling over stars like Camila Cabello, Karlie Kloss, and Rita Ora. See the rest of her night ahead.