Sgt. Pepper's Lonely Hearts Club Band "Being for the Benefit of Mr. Kite!" and "A Day in the Life". Producer George Martin and engineer Geoff Emerick helped realise the group's ideas by approaching the studio as an instrument, applying orchestral overdubs, sound effects and other methods of tape manipulation. Recording was completed on 21 April 1967. The cover, depicting the Beatles posing in front of a tableau of celebrities and historical figures, was designed by the British pop artists Peter Blake and Jann Haworth. "Sgt. Pepper" is regarded by musicologists as an early concept album that advanced the use of extended form in popular music while
Sgt. Pepper's Lonely Hearts Club Band a larger scale than ever before". Writing in his book "Electric Shock", Peter Doggett describes the release as "An Event" and "the biggest pop happening" to take place between the Beatles' debut on American television in February 1964 and Lennon's murder in December 1980. The album's impact was felt at the Monterey International Pop Festival, the second event in the Summer of Love, organised by Taylor and held over 16–18 June in county fairgrounds north of San Francisco. "Sgt. Pepper" was played in kiosks and stands there, and festival staff wore badges carrying Lennon's lyric "A splendid time is guaranteed