Stranger Things star Millie Bobby Brown has been busy working on the upcoming season of the hit horror show, but that's not stopping her from having some fun.

Brown made an appearance on Jimmy Fallon where she showed off her singing skills on Fallon's 'Beat Battle.'

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The two faced off this week for the show's karaoke game where participants attempt to sing as many songs as they can over random beats.

The actor matched Fallon song for song during the entire clip, busting out some incredible choices. Brown was repping tracks from emo-faves Panic! At The Disco, Gwen Stefani, Carly Rae Jepsen, Lizzo, Lorde and more. You can check out the full clip below.

Brown also revealed earlier in the week how Eleven will change throughout the third season of Stranger Things.

“Eleven’s character evolves greatly,” Brown said about her character. “And I can say its spreading fast. And that’s all I can tell you.”

While she didn’t go into more detail, it seemed pretty telling that something crazy is bound to happen to the main character in the episodes to come.

Stranger Things

Based on the fact that the teaser is focused on Billie alone, it looks like he may become a major character in the new season.

What do you think of Millie Bobby Brown's singing skills? Let us know in the comments below.

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