"Peggy Sue" is a popular rock song written by Buddy Holly and Jerry Allison. Released in 1957, it became one of Holly's most famous tracks, showcasing his unique style and catchy melodies. The song tells the story of a young girl named Peggy Sue and reflects themes of love and nostalgia. The song gained further fame when it was featured in the 1986 film Peggy Sue Got Married, starring Kathleen Turner. This film, directed by Francis Ford Coppola, explores the idea of time travel and revisiting one's youth, making the song's themes even more relevant to the storyline.