“She seemed leathered already - sweaty, fidgety, and desperate to dance. She kept saying. ‘Make me rave, make me rave’, and demanding I change the music.” Dad-oftwo Elliot said Kate and several other guests ignored the smoking ban to light up inside. He said: “Then someone in Kate’s group started rolling spliffs.

When Kate came back she seemed even more lively and desperate to dance.”

Elliot also told how the star’s head lolled back as she sunk into a high after snorting from a bottle of alkyl nitrate, known as “poppers”. He said: “Kate pulled some poppers out of her handbag and started snorting them in really heavily.

“I told her I didn’t know and I didn’t have any, but she said, ‘I want some gear. Get me some gear. You’re a DJ, you must have some’. She was tapping on a record sleeve in the motion of someone racking up lines of coke. It was obvious what she was after.

“I remember thinking, ‘God, Kate Moss just asked me for cocaine’.