Kings of Leon Joined On Stage by Chris Martin

What happens when two headlining acts come together to perform one of their songs? You get exactly what happened this bast weekend at Radio One’s One Big Weekend in Glasgow on Sunday.

After headlining the festivities the nothing before, Coldplay’s Chris Martin decided to stick it out an extra day which resulted in the frontman performing alongside fellow headliners, Kings of Leon. The singer took to the stage to sing back up and play guitar alongside the band while also dressed up like KOL frontman, Caleb Followill during the band’s song “Fans.”

Talk about flattery. But it looks like the flattery goes both ways since Followill introduced Martin by calling him the “second most famous singer here today.” We can only guess who the most famous singer at the venue was (we’re being sarcastic of course).

Check out the video straight from the festival here.