Paul McCartney February 1967, and the LP followed in June. McCartney's "She's Leaving Home" was an orchestral pop song. MacDonald described the track as "[among] the finest work on "Sgt. Pepper"—imperishable popular art of its time". Based on an ink drawing by McCartney, the LP's cover included a collage designed by pop artists Peter Blake and Jann Haworth, featuring the Beatles in costume as the Sgt. Pepper's Lonely Hearts Club Band, standing with a host of celebrities. The heavy moustaches worn by the Beatles reflected the growing influence of hippie style trends on the band, while their clothing "spoofed the vogue in
Cultural impact of the Beatles in avant-garde composers such as Karlheinz Stockhausen and John Cage, similarly informed the recording of "Strawberry Fields Forever" and "Sgt. Pepper". Quoting a composer from the UCLA School of Music, "Time" magazine's appreciation of "Sgt. Pepper" recognised the Beatles as having adopted concepts first pioneered by the Cologne group, thereby making an "enormous contribution to electronic music". The Beatles were the first entertainment act to stage a large stadium concert. At Shea Stadium in New York City on Sunday, 15 August 1965, the group opened their 1965 North American tour to a record audience of 55,600. The event sold out