'Peggy Sue' is a rock and roll song written by Buddy Holly, Jerry Allison, and Norman Petty, and originally performed, recorded and released as a single by Buddy Holly and the Crickets in early July of 1957. The song is ranked #194 on the Rolling Stone magazine's list of The 500 Greatest Songs of All Time.
The song was originally called 'Cindy Lou', and was named for Buddy's niece, the daughter of his sister Pat Holley Kaiter. The title was later changed to 'Peggy Sue' in reference to Crickets drummer Jerry Allison's girlfriend (and future wife), Peggy Sue Gerron, with whom he had recently had a temporary breakup.