"Fire" is a 1968 song written by Arthur Brown, Vincent Crane, Mike Finesilver and Peter Ker. Performed by The Crazy World of Arthur Brown, it was released as a single and on the band's debut album, also called The Crazy World of Arthur Brown. The single reached no.1 in the United Kingdom (in August 1968) and in Canada. In October, it reached no.2 in the United States Billboard charts and no.19 in Australia. It also reached no.3 in Germany, no.4 in France, no.6 in the Netherlands, no.7 in Austria, no.8 in Ireland, and no.18 in Finland. "Fire" sold over one million copies, and was awarded a gold disc.

The song is an example of the psychedelic rock of the period, though its lack of guitars or bass guitar distinguished it from many of its contemporaries. The lead instrument in this case was Vincent Crane's Hammond organ, augmented by an orchestral section featuring prominent brass. The singer's opening proclamation "I am the God of Hellfire" became a lasting catchphrase. The song ends with the sound of a wind from Hell.

During live performances and in the black and white promotional television clip, Brown performed the song wearing a burning helmet. The helmet was improvised with a leather skull cap onto which was bolted a metal dish that held lighter fluid or petrol. As the cap was not insulated, the heat from the burning fuel quickly conducted through the fixing bolt to the top of Brown's head, causing him considerable pain.

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