Released on the 1971 album Relics, Interstellar Overdrive stands as a seminal work in the progressive rock genre. The track features the distinctive, high-pitched guitar solo by Syd Barrett, who departed the band shortly after its release. Originally recorded as a demo, the song was later included on the compilation Relics and has since become a staple of the psychedelic rock canon. Its driving rhythm and soaring melody exemplify the experimental spirit of Pink Floyd's early catalog, influencing countless artists who followed. The piece remains a defining example of the era's sound, celebrated for its unique vocal delivery and innovative guitar work that pushed the boundaries of rock music at the time.