One of the world's most bootlegged recordings - Fatboy Slim's Satisfaction Skank - is finally being released, after the Rolling Stones gave belated approval for the song's pivotal sample.

Fatboy Slim, real name Norman Cook, created the track 25 years ago by grafting the riff from the Stones' Satisfaction onto his platinum-selling single The Rockafeller Skank, after he grew "bored" of playing the original.

"It was my secret weapon," he told BBC News. "I had this tune that nobody else had, and it was a really good encore."

In the 2000s, the song spread like wildfire on file-sharing sites like Napster and Kazaa but, until now, The Stones had refused to clear it for commercial release.

Even Cook bought bootleg copies of the song, some of which had been taped off his live sets on BBC Radio 1 and pressed to vinyl.