"Sgt. Pepper" contributed to the popular trend for military-style fashions as adopted by London's boutique shops. Following the LP's release, rock acts afforded cover art greater consideration and increasingly sought to create a thematic link between their album artwork and the record's musical statements. Riley describes the cover as "one of the best-known works that pop art ever produced", while Norman calls it "the most famous album cover of all time". The Beatles' 1968 self-titled double LP became known as the White Album for its plain white sleeve, which the band chose as a contrast with the wave of psychedelic imagery and album covers inspired by "Sgt. Pepper". In the late 1990s, the BBC included the "Sgt. Pepper" cover in its list of British masterpieces of twentieth-century art and design, placing it ahead of the red telephone box, Mary Quant's miniskirt, and the Mini motorcar.