The 38-year-old singer, who was once known for his own use of the drug, said the man had spotted a flake from his scalp after he performed at Glastonbury, then popped it up his nostril.

Gallagher told the new edition of Q magazine that he suffers from skin condition psoriasis, which affects much of his body.

He said, ‘I’ve got bad skin. I’ve got psoriasis all over my fucking body. Everywhere except for me face. And every now and again on me head.’

Gallagher said the drug mix-up happened after he had performed at the festival with former band Oasis.

He recalled, “Everyone’s backstage and this geezer comes up to me, going ‘I ain’t seen Oasis for fucking years, fucking great,’ and I’m going ‘yeah, alright.’

“And he goes to his mate. ‘look Steve, he’s even got cocaine in his hair.’ And he pulls a bit of shit out me hair.”

He claimed the unnamed man then snorted it. The drug is jokingly referred to as ‘devil’s dandruff’.

He added, ‘I hope our kid’s buzzin’. I hope he’s gonna make great records. And he probably will.’