The saxophone solo on “You Know My Name (Look Up the Number)” was played by the Rolling Stones’ guitarist and co-founder Brian Jones. The recording of the song began with all four Beatles during the summer of 1967, with Jones adding his saxophone part in June.
The song was shelved for two years until April 1969, when John Lennon and Paul McCartney recorded their vocal tracks and added additional sound effects with the help of road manager/assistant Mal Evans.
The song would not appear on record for yet another year when it became the B-side to the Beatles’ single, “Let It Be”, released in 1970. Brian Jones would not live to see it’s release as he died due to a drowning accident (or some say due to murder) on July 3, 1969.