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 (film) and "Rubber Soul". When asked about the film in a 1979 interview, George Harrison expressed his sympathy for Stigwood, Frampton and the Bee Gees, acknowledging that they had all worked hard to achieve success before making "Sgt. Pepper". He said of Frampton and the Bee Gees: "I think it's damaged their images, their careers, and they didn't "need" to do that. It's just like the Beatles trying to do the Rolling Stones. The Rolling Stones can do it better." When the Bee Gees regained control of their catalog, the "Sgt. Pepper" soundtrack was the only album that they did not