It is 30 years since chart-topping Definitely Maybe by Oasis turned the Gallagher brothers into stars - literally taking them from a Manchester living room to the world's biggest stages. Supersonic. Shakermaker.

Live Forever. As 1994 reached the height of summer, the band's star was in the ascendency with each new single charting higher than the last. The LP that spawned those anthems, the swaggering and belligerent Definitely Maybe, became the fastest-selling debut in UK history when it was released on 29 August.

It helped light the fuse for Britpop and set the group on their way to record-breaking shows at Knebworth just two years later in front of 250,000 people. It was, says Oasis confidant Brian Cannon, "a meteoric rise". "It was like The Beatles.

Everything just clicked and they became massive so quickly." To fans, the album's cover, with the band's five members pictured in the front room of rhythm guitarist Paul "Bonehead" Arthurs' West Didsbury home, is as familiar as the songs within. Art director Cannon, who is credited with the sleeve concept and design, explains the idea of Oasis "chilling out" owes much to an image of the Fab Four shot in a Tokyo hotel room three decades before and a second, much older, source.

"I just thought it was a fantastic picture," he says, pulling out a framed copy of a Beatles' compilation album at his Microdot design company headquarters in Kendal, on the edge of the Lake District. "The photograph on the back of A Collection of Beatles .