The Independent Lemon version began with what sounded like a clip of Torus performing the song, but it continues for a few more minutes longer, the band claimed.
Singer and guitarist Alfie Glass said: “I thought it was somebody doing a cover of our cover, like a real person doing it, and I thought they actually did a pretty good job, but obviously they were like American or something.
Drummer Jack Orr said: “It was just before we dropped it, I remember seeing the AI version on Spotify, my sister showed me, and it was weird.
“It took me a minute to realise that came from our initial clip, someone had just taken that clip and looped it a few times, but then I think AI had done something to it to – it added a riff or something.”
The account has nearly 700,000 monthly listeners and has uploaded about 100 singles over the last year.
Many of these are covers, and some have earned millions of streams.
There were versions of Michael Jackson, Lorde and the Macarena – sometimes done in a different genre, sometimes sped up or slowed down.