Ian Levine has told how he smashed a record over Simon Cowell's head in a packed nightclub after he tried to force him to play a Sinitta record.
He was DJ-ing at gay club Heaven as Simon was trying to make his then protege Sinitta a star with her single So Macho.
But in an interview to be screened in Channel 4 documentary Queer As Pop: From Gay Scene To Mainstream, Ian said he was angered that the music mogul was trying to cash-in on the gay market.
He said of the track: "It was a step too far. It was a piece of s***, cynically designed to get the gay record sales."
Ian, who was the resident DJ at the London gay club at the time in the mid-1980s, said: "Simon brought Sinitta to the DJ booth at Heaven, because I banned the record. I told him I am not playing this shit, no way - I am not playing So Macho.
"He said 'Here is the record, just put it on' and I said no. I was cueing a record up to mix, he grabbed it off the record deck and put So Macho on the deck instead and he said 'Play it'."
Ian, the first producer to work with the then music executive Simon, went on: "I saw red and I picked So Macho up and I smashed it on his head and it splintered into about six pieces and he looked at me horrified and stormed out of the DJ booth with Sinitta."
The documentary to be screened on Friday at 22.55pm looks at the music and social changes in gay culture which have occurred in the past 40 years.