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
The Beatles (album) a spiritual respite from all worldly endeavours – a chance, in John Lennon's words, to "get away from everything". Both Lennon and Paul McCartney quickly re-engaged themselves in songwriting, often meeting "clandestinely in the afternoons in each other's rooms" to review their new work. "Regardless of what I was supposed to be doing," Lennon later recalled, "I did write some of my best songs there." Author Ian MacDonald said "Sgt Pepper" was "shaped by LSD", but the Beatles took no drugs with them to India aside from marijuana, and their clear minds helped the group with their songwriting. The stay