Investigation

Johnny Sharp on the creation of the artwork for David Bowie's early '70s album Aladdin Sane

If you want to go to a fancy dress party as a rock star, there are plenty of different ways that you could 'do' David Bowie. But probably the easiest would be to paint a red, blue and silver lightning flash over your right eye. Kapow! Instant Bowie. Fancy paying tribute to the great man on your Facebook profile? A lightning flash should do the trick. You might even get away without dying your hair red or growing a mullet.

Johnny Sharp on the creation of the artwork for Elton John's 1975 album Captain Fantastic

Pride, it is said, comes before a fall. But when Elton John made a concept album at the height of his success, celebrating the journey he and lyricist Bernie Taupin had made since their first meeting in 1967, the old maxim didn't hold true. Not only did it become the first album to top the Billboard charts in its week of release, it would also prove to be a creative high-water mark for the songwriting partnership.

Johnny Sharp on the creation of the artwork for Hot Rats, Frank Zappa's second solo LP

The '60s were coming to a messy, slightly bitter end, and so were Frank Zappa's The Mothers Of Invention. Deep in debt after six studio albums and fed up with paying the wages of a nine-piece band who didn't always seem to be fully on board with his creative vision, Zappa was starting to become disillusioned.

Johnny Sharp on the creation of the artwork for Roxy Music, the band's debut album

If ever there was a band that arrived on the scene fully formed, it was Roxy Music. Before they were even signed to a label, they had a startling, glitter-flecked, faintly androgynous image, and a unique hybrid sound. This blended stomping glam pop with jazz-inflected avant-prog and experimental electronica, drawing influences from show tunes to war movies and torch songs while adding dashes of sensuality, camp and black humour. And it helped, of course, that they threw some highly memorable tunes in there.

Johnny Sharp on the creation of the artwork for Alice Cooper's early '70s album School's Out

When Alice Cooper's single 'School's Out' swept across America in the spring of 1972 then went on to become an international smash hit, it offered a ready-made shoutalong anthem for a generation.

Johnny Sharp on the creation of the artwork for The Who's late '60s album The Who Sell Out

If you want an illustration of just how quickly pop evolved in the 1960s, you only have to look at the first two years of The Who's recording career. That was the stretch of time between their flinty, mod-informed R 'n' B rock debut LP – 1965's My Generation – and a cheekily post-modern third album that seemed to mock the very idea of pop music as anything more than a vehicle for commerce.

Thinking about tweaking your valve amp by swapping out the tubes? Steve Harris has the inside track on the payoffs and pitfalls of tube rolling…