Millie Bobby Brown quickly rose to fame in 2016 when the first season of ‘Stranger Things’ premiered. Millie was one of the most talked about characters on the show as she portrayed the mysterious Eleven in the series. At the time the show first aired, Millie was just 12 years old, and she was thrust into fame at such a young age. However, Millie stayed grounded as her celebrity status rose, and she began growing up into a young adult right in the public eye!

On Feb. 19, Millie turned 18 years old, and she’s certainly come a long way from her early days in the spotlight. Here, Millie can be seen promoting the first season of ‘Stranger Things’ as pre-teen. In just six years, she’s grown up quite a bit, and if you keep scrolling through the gallery, you can see just how wild the transformation has been!