There was no recording session scheduled for April, 18, 1966, so John Lennon and George Harrison went to the Marquee Club in London, where they saw The Lovin' Spoonful perform.
Between 1964 and 1988 the Marquee Club was situated at 90 Wardour Street in Soho, London. On this night Harrison met Eric Clapton; the pair would become close friends in subsequent years. They had met once before, during Another Beatles Christmas Show at Hammersmith Odeon in 1964-65.
Afterwards Lennon and Harrison visited a London nightclub in the company of Brian Jones, Spencer Davis, Stevie Winwood and Tom McGuinness.