When I'm Sixty-Four

One reason for the enormous success of The Beatles was the very wide variety of songs that they wrote, from heavy rock rhythms to light jaunty pieces. This song is at the jaunty end of the range. It was one of the first songs that Paul McCartney wrote, at around the age of 14 and long before the Beatles were formed. It was recorded by the Beatles for the Sgt. Pepper's Lonely Hearts Club Band album, featuring a trio of clarinets, in the year that Paul's father turned 64.