The 'Stranger Things' star just made a bold style move, swapping her signature look for something totally unexpected.

Millie Bobby Brown just debuted a brand new hair color, and it will make you look twice. Given that the Stranger Things actor ...

It just puts children in a really dangerous situation,” Brown said about contracts she signed as a child getting leaked.

Kristina Bumphrey/Variety via Getty; Millie Bobby Brown/Instagram ... she gazed toward the floor. Brown completed her glam get-up with a brown lip and some smoky eye makeup.

Millie Bobby Brown has a new look ... with matching heels and minimal jewelry. Brown’s glam for the hair reveal included a dark smokey eye, a brown lip and an overall bronzed look.

Brown completed her glam get-up with a brown lip and some smoky eye makeup. Related: Millie Bobby Brown Reads Emotional Note as Filming on Stranger Things Wraps: ‘Nowhere Near Ready to Leave You ...

In the snap, Brown showed off her new bleached blonde hair, which was cut in textured face-framing layers, while wearing a dark lip and a smokey eye. In the other two photos in the carousel ...

Millie Bobby Brown is ditching the dark ... To further emphasize the nostalgic vibes, Brown rocked defined brows and a deep mauve-colored lip liner. The sudden change has her followers stunned.

And to have everyone's opinions and eyes looking at that just feels unnatural ... We have to be, and we always have been." Millie Bobby Brown and Jake Bongiovi Are Planning a "Huge" Celeb-Packe ...