The flamboyant singer bonded with Black over their shared love of The Doors on Monday (20Jul15), when they were both guests on U.S. talk show Conan.

They then showed off their knowledge of The Doors lyrics by teaming up to belt out one of the group's hits, Hello, I Love You, with host Conan O'Brien's house band, which featured The Doors' guitarist Robby Krieger as a guest musician.

Boy George enjoyed the collaboration so much, he called on Black to hit the stage with him again as Culture Club returned to Los Angeles' Greek Theatre for the first time in decades on Thursday.

The Tenacious D frontman happily obliged and joined forces with the Karma Chameleon hitmakers to perform David Bowie classic Starman together for the concert finale.