Gallagher had got on board the flight to Tokyo after swilling champagne in Heathrow"s Upper Class lounge, and he and Allen started their marathon drinking session as the plane took off, and continued for hours after the flight landed.
“They did not care about the other passengers. They were in a world of their own," the Sun quoted a flight source as saying. “They were already well-oiled by the time they came on board. There is obviously a different set of rules for celebrities," the source said.
Gallagher and Allen"s entourages, who made up about half the 30 passengers in Upper Class, had told cabin crew as they boarded to “keep those two apart".