Millie Bobby Brown, who you might know as a good rapper, is pretty good at pulling random song lyrics out of her head too.

The Stranger Things star dropped into The Tonight Show on Wednesday, where she sung alongside Jimmy Fallon in a segment called "Beat Battle."

You shouldn't be so surprised, but Brown is utterly effortless at switching from songs like Carly Rae Jepsen's "Call Me Maybe" to Lizzo's "Juice." She is just that good.