Millie Bobby Brown, Smart Girl, Hugs Zac Efron at the MTV Awards

Millie Bobby Brown had the time of her life at the MTV Movie and TV Awards on Sunday, and we have the pictures to prove it. After joining host Adam DeVine on stage for his Beauty and the Beast opener, the Stranger Things actress melted our hearts when she started sobbing during her speech for best actor in a TV show. Don't worry, though — she was completely tear-free when she adorably fangirled over some of the night's other big stars, including Zac Efron, Emma Watson, and Cara Delevingne. Zac also returned the favour when he posted a photo of him and Millie on Instagram, writing, "Always fan boy out too much when 011's around."