7 Cavendish Road, London (McCartney's Home), February 1969. "Goodbye" would become a huge it for Apple recording artist, Mary Hopkin. Listening to Paul's demo, it is easy to see why. Written by McCartney, it was credited as a Lennon/McCartney composition. The original version was released as a single on 28th March 1969 and it reached Number 2 in the UK Singles Chart. It was kept off the top of the charts by the Beatles' single "Get Back". "Goodbye" has never been officially released by the Beatles.