Hipgnosis specialised in creating album cover artwork for rock musicians and bands. Their commissions included work for Pink Floyd, Def Leppard, T. Rex, the Pretty Things, Black Sabbath, Wishbone Ash, UFO, 10cc, Bad Company, Led Zeppelin, AC/DC, Scorpions, The Nice, Paul McCartney & Wings, the Alan Parsons Project, Yes, Genesis, Peter Gabriel, Electric Light Orchestra, Rainbow, Styx and Al Stewart.