- Paul McCartney - double-tracked vocal, bass guitar, electric piano
- John Lennon - backing vocal, lead guitar
- George Harrison - backing vocal, lead guitar, tambura
- Ringo Starr - drums, congas
- George Martin - piano, pianet
Getting Better was written by John and Paul together. The story starts when Ringo got tonsillitis before the tour to Australia and Asia. George Martin hired session drummer Jimmy Nicol to sit in for what turned out to be 8 sessions. Nicol was understandably tense during these gigs, and when the band asked him how he was feeling, he would always answer tensely, "It's Getting Better." This became a band in-joke. Three years later, Paul asked John to help him write a song around the phrase. Getting Better was one of the team's last truly collaborative efforts from scratch. The Lennon lyric, "I used to be cruel to my woman; I beat her and kept her apart from the things that she loved" was his first acknowledgement in public of an abusive personality.
On March 9, 1967 the rhythm track was laid down in 7 takes. On the 10th double tracks were added of bass, tamboura and congas. On March 23, the vocals were added. The song was released on the album Sgt. Pepper's Lonely Hearts Club Band.