"King Heroin" is an anti-drug song by James Brown, David Matthews, Manny Rosen and Charles Bobbit. Brown recorded this poem set to music at a studio in New York with session musicians in January 1972 and released it as a single in March. It was his fifth single for Polydor Records and reached number six on the U.S. Hot Soul Singles chart and number forty on the Billboard Hot 100 in the spring. The song was included on Brown's 1972 album There It Is.

The poem was originally written by Rosen, who worked at the Stage Delicatessen on Seventh Avenue in midtown Manhattan. It was written from the point of view of the drug, and explained in graphic detail by first-person narrative the effects heroin addiction has on people who use it, from fashion models neglecting their looks, to "the most virile of men losing their sex," to committing murder, to cold turkey withdrawal. Rosen's poem was then set to music by Brown, his arranger David Matthews, and Brown's manager Charles Bobbit. Brown added an intro to start off the piece, referring to heroin as "one of our most deadly killers in the country today"; and towards the end, he noted, "This is a revolution of the mind" – referring to the title of his 1971 live concert album recorded at the Apollo Theater in New York.

"King Heroin" was another of Brown's stabs of socially conscious music, along the lines of such previous efforts as "Don't Be a Drop-Out" and "Say It Loud – I'm Black and I'm Proud." His narrative style on this song is also considered to be a forerunner of rap music.

...
Wikipedia