James Bay and Mick Jagger, together! Watch Here

On Tuesday night, James Bay opened for The Rolling Stones at London’s Twickenham Stadium, and then he stuck around to join the rock legends on stage.

James joined Stones frontman Mick Jagger for a duet on the band’s classic tune “Beast of Burden.” Afterwards, he wrote on Instagram, “This band have probably shaped the way I make music and perform more than anyone else. Their relentless passion and energy on stage is so inspiring. I can’t believe last night was real. THANK YOU X.”

This isn’t the first time James has opened for The Stones: Back in 2013, he warmed up the crowd when they played London’s Hyde Park.