Watch Charli XCX and Troye Sivan perform “1999” on The Tonight Show

The pair appeared on Jimmy Fallon’s show on Monday night.

November 13, 2018

Charli XCX and Troye Sivan wound the clock back nearly two decades last night with a performance of "1999" on Jimmy Fallon's Tonight Show. The pair performed their collaborative single on TV for the first time, channeling the Matrix vibes of the music video with slime-green lighting and plenty of leather. Check it out above.

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Watch Charli XCX and Troye Sivan perform “1999” on The Tonight Show