On Sunday, the 23-year-old showed off her lighter locks at WonderCon in Anaheim, Calif.
The adorable Help star rose to fame as a redhead, but she's actually a natural blonde. She went back to her roots for her role as Gwen Stacy in The Amazing Spider-Man.
At that time she told In Style she wasn't used to being a blonde, saying, "Sometimes I look in the mirror and still feel like I'm wearing a wig."
What do you think of Emma's new hair? Weigh in below!