Dr. Demento (born April 2, 1941 in Minneapolis, Minnesota) is the stage name of Barret Hansen [1], who has made a successful career as a radio disc jockey specializing in novelty songs and pop music parodies. He created the persona in 1970 while working at Los Angeles station KPPC-FM. Legend has it, after Hansen played "Transfusion" by Nervous Norvus on the radio, someone said that he had to be demented to play that. Thereafter, the name stuck.

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