Millie Bobby Brown debuts new blonde hair extensions and her fans cannot get enough

At just 16 years old, British actress Millie Bobby Brown already has the entire world at her feet.

Not only does her role as Eleven in the sci-fi drama Stranger Things make her the star of one of the most popular shows on the planet, but the headstrong teen also boasts a social media following bigger than some country's populations.

On Instagram, Brown has already amassed more than 33.4 million followers! (When I was 16, I had only just worked up the confidence to go to the dentist by myself.)

And the young Godzilla star certainly knows how to keep her loyal fanbase entertained.

Just check out this video Brown shared of her singing on vacation - is there nothing she can't do?!

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Now, Brown has stunned her fans by debuting a new hairstyle, featuring long blonde hair extensions. The new look is certainly a far cry from the shaved head or brunette bangs we're used to seeing from the teenage star.

Sharing the snap on Instagram, Millie captioned the post: "matching [with] my chicken nugget today (swipe for a surprise)".

For those unaware, her "chicken nugget" is her adorable dog, Winnie. However, despite the cute pooch appearing the actually smile for the camera, fans were more taken aback by Brown's new blonde locks.

Check out Millie's striking new look below:

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And, unsurprisingly, her followers loved it! As of this writing, the post has already amassed over 4.7 million likes and the positive comments came flooding in:

And don't worry, it shouldn't be too long before Millie is back on our screens as Eleven.

Speaking to Elle about the upcoming season four of Stranger Things, Brown opened up about her hopes for her character:

"I hope [Eleven] finds who she is, without a boy, a male influence in her life. There's Mike and Papa and Hopper and all the boys really. Even without Max⁠, she needs to find herself by herself.

Everyone needs that moment in life to sit there and think, 'Who am I as a person, who am I without everyone around me? How can I really love myself?' I don't know if she knows how to do that yet.

"So I would like an arc for Eleven to learn how to love herself and learn who she is, which is hard in the circumstances she's in. I think that she needs a little self-journey."

I cannot wait!