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

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Boy George  takes part in the annual Gay Pride street march through central London on July 4, 2009 in London, England.  

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."

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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.

This article originally appeared in THR.com.