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Janelle Monáe royally slayed London’s SSE Wembley Arena on Monday, and somewhere amidst the singer's jaw-dropper of a show, she was joined onstage by Usactor Lupita Nyong'o.

Nyong'o threw down some moves with the Dirty Computerartist, who had pulled members of the crowd up to shake it to Monae's Pharrell Williams collab "I Got the Juice."

After two fans showed off their moves wearing homemade "Pynk" vagina pants, Nyong'o was waiting casually in the wings, ready to hit the stage for her own delightful dance moment with Monae.

Luckily, Mashable's associate producer Maria Dermentzi was down front, and managed to capture the moment that will make your whole damn day.

Myself? I was lurking up top in the stands, but still... what a moment.

Needless to say, fans lost their damn minds over the surprise cameo, posting their own freak outs on Twitter.

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Monae's highly impressive show, delivered just days following her appearance at the colossal Glastonbury Festival, was full of surprises like this, including a politically charged monologue which ended with a firm, "impeach Donald Trump."

The Dirty Computertour runs through Europe over the next few months with the one-and-only Lizzo, then hits the U.S. in August, starting with Lollapalooza in Chicago.

Who knows who'll show up?