Last night, Beck headlined the second night of Riot Fest in Chicago. During his encore, he brought out Gary Numan to perform his late ’70s hit “Cars.” Numan had played the festival earlier that day on the heels of his solo album from last year, Savage (Songs from a Broken World).

Beck has had an extended interest in “Cars” — he’s been incorporating bits of it into the live shows for his Colors tour since it kicked off, but he also performed it as far back as 2002, as Beck fansite Whiskey Clone lays out.

Watch Beck and Numan perform it together below.

Honoured to be invited to join @beck on stage tonight at RiotFest. Incredible band. pic.twitter.com/uxyZKAYPip

— Gary Numan (@numanofficial) September 16, 2018

Beck joined by @numanofficial at @RiotFest 2018!
More views: https://t.co/C1yGtcVeYG / https://t.co/3zhWkMDD6r

Catch Beck & the #ColorsTour tonight in St. Louis!https://t.co/BFdMQb8J5x pic.twitter.com/y1Xe6L0FQh

— Beck (@beck) September 16, 2018