who wrote and sang when i'm 64
When I'm Sixty-Four "When I'm Sixty-Four" is a song by the Beatles, written by Paul McCartney[4][5] (credited to Lennon–McCartney) and released in 1967 on their album Sgt. Pepper's Lonely Hearts Club Band.
Old Man (song) "Old Man" is a song written and performed by Neil Young on his 1972 album Harvest. "Old Man" was released as a single on Reprise Records in the spring of 1972, and reached #31 on the Billboard Hot 100 singles chart for the week ending June 3.