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 the band's entourage are sometimes given the informal title of "fifth Beatle". As their enormous popularity grew into the frenzy dubbed "Beatlemania" in 1963, they acquired the nickname "the Fab Four", and by early 1964 became international stars, leading the "British Invasion" of the United States pop market. From 1965 onwards, the Beatles produced increasingly innovative recordings, including the albums "Rubber Soul" (1965), "Revolver" (1966), "Sgt. Pepper's Lonely Hearts Club Band" (1967), "The Beatles" (also known as the "White Album", 1968) and "Abbey Road" (1969). In 1968, they founded Apple Corps, a multi-armed multimedia corporation. After breaking up in 1970,