By Jessica Goodman
July 14, 2015 at 12:20 PM EDT

Conan O’Brien didn’t really believe that Boy George was musically influenced by legendary rock band the Doors, so he made the singer prove it on Monday’s episode of Conan. “What’s wrong with the Doors?” Jack Black, who was also a guest on the show, asked. “The Doors are rad. I love the Doors.”

So, to show their Doors fandom, Boy George and Black performed the band’s iconic song “Hello I Love You” with a little help from — surprise! — Doors guitarist Robby Krieger.