The fit-again Fame Monster, who last week staged her first gig since hip surgery in February, had New York fans swooning over her performance.
But she also left her musicians and backstage staff gagging over the fumes from her never-ending flatulence.
One member of her crew at the Gay Pride rally revealed: “The smell was foul, like a dumpster full of rotting food. And some of her farts were loud, so there was no pretending she wasn’t the source of the stench.
“It was especially bad every time she bent over to change costume or made a vigorous move on stage. A fresh one would come cracking out but she’d just laugh when people held their noses.”
Gassy Gaga, 27, blames a new diet that has helped her lose 2st 1lb since her surgery.
But a source close – but not too close – to the Born This Way singer confided: “The real problem is she has been trying to crash diet by making modifications to the one her nutritionist and trainer devised for her.
“Instead of following it to the letter, she spent a week eating hard-boiled eggs and another eating only spinach. Whose stomach and intestines wouldn’t be in turmoil?”
Gaga’s pal added: “It’s gotten so bad it’s beyond a joke. The eggs-only week was especially bad and a vapour trail of sulphur followed in her wake.