Jack Black and Boy George Energetically Cover The Doors' "Hello, I Love You"

Jack Black and Boy George — H 2015

The two rock out on 'Conan.'

Jack Black and Boy George both expressed their love of The Doors while visiting Conan on Monday.

"Jim Morrison had the best yell," Black repeatedly told Conan O'Brien. In what at first seemed like a spontaneous request, O'Brien asked the two men to sing a cover of "Hello, I Love You."

However, the move was actually planned, because Doors guitarist Robby Krieger just happened to be ready with his guitar when Black and Boy George walked over to their microphones. 

Watch their enthusiastic performance below.