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.
You're Sixteen "You're Sixteen" is a song written by the Sherman Brothers (Robert B. Sherman and Richard M. Sherman). It was first performed by American rockabilly singer Johnny Burnette, whose version peaked at number eight on the U.S. Billboard Hot 100 in December 1960 and number 3 in the U.K. in 1961.[1] The original 1960 version of "You're Sixteen" by Johnny Burnette is featured prominently on the 1973 motion picture soundtrack of the film American Graffiti.