Millie Bobby Brown fans have one question after she unveils drastic new look

Earlier this week, actress Millie Bobby Brown set the internet ablaze with conspiracy theories after debuting a startling new look on Instagram, with many wondering what the sudden change in appearance could possibly mean.

And by the sounds of things, several of her fans have been left with one all-important question...

Brown is usually seen with her natural brunette hair (Arturo Holmes/WireImage)

For those out of the loop, in a social media dump shared three days ago, the 20-year-old Stranger Things actress was seen looking worlds away from her usual, low-key brunette aesthetic.

Instead, Brown was seen donning a full beat of taupe lipstick, smokey eyeshadow and super snatched contour, which she paired with a skin-tight midi dress and matching buckle shoes.

It was the movie star's hair, however, that sparked the biggest response, as she was seen rocking a bleach blonde wig and Pamela Anderson-inspired bangs.

The first of her trio of snaps was littered with Noughties-esque emojis - including a splash of the word 'hot', several butterfly splotches and a 'System error!' message, similar to that which previously appeared for MSN users.

As we say, the British-based star's new look immediately set tongues wagging, with conspiracy theories clogging up the comment section, each claiming to know the 'real reason' for Brown's considerably lighter tresses.

The actress has sparked one particularly interesting theory (Instagram/@millebobbybrown)

The most popular proposition put forward predicts that the Enola Holmes front-woman could have made the change in preparation for a new movie role - the upcoming Britney Spears biopic, perhaps?

"Oh s**t. Is she actually playing Britney?!" one asked, as another guessed: "Ready to play Britney now."

"BRITNEY IS COMING," a third predicted, whilst another questioned, "BRITNEY???"

And amongst the hundreds of questions about the possible role is one which stands out above the rest - 'When?'

"Britney Spears biopic when," one asked in the comments, which quickly racked up likes from other viewers.

Variety reported back in August that University Pictures had won the rights to a movie adaptation of Britney's 2024 best-selling memoir The Woman In Me, adding that Wicked director Jon M. Chu had been hired for the gig.

It was also revealed by the outlet that producer Marc Platt was involved.

A Britney Spears biopic is reportedly in the works (J. Merritt/Getty Images for GLAAD)

The news came after the singer herself teased a something exciting on her horizon on X (formerly Twitter), writing: "Excited to share with my fans that I've been working on a secret project with #MarcPlatt.

"He’s always made my favorite movies … stay tuned."

The self-written book detailed 43-year-old Britney's rise to fame, going from the Mickey Mouse Club to one of the best-selling female artists of all time.

As well as touching on her relationship with ex-beau Justin Timberlake, the memoir went into detail about the controversial conservatorship that the mother-of-two had been placed under following a public breakdown, as well as her subsequent 2021 release.

Whilst the names of several other huge-name stars have since been thrown around - including the likes of Sydney Sweeney, Dove Cameron and Emma Roberts - during conversations of who'll play the 'Oops, I Did It Again' hit-maker, it could very well be MBB.

Speaking to Drew Barrymore in 2022, the young star claimed it had always been an ambition to portray Britney.

Brown previously admitted she'd love to portray the singer (Instagram/@milliebobbybrown)

"Just growing up in the public eye, watching her videos, watching interviews of how when she was younger," she previously gushed.

"I don't know her, but when I look at pictures of her, I feel like I could tell her story in the right way, and hers only."