When you are 1/4 of the greatest band of all time, not all of your quality tracks earn entry into your group's repertoire. In early 1969, with the Beatles' sprawling double LP only months behind, Paul McCartney still had many worthy songs languishing away, including the beautiful tune "Goodbye". Luckily for the 19-year-old Mary Hopkin, McCartney was in an altruistic mood, lending his songwriting and production skills to the upstart. While Hopkin's rendition adequately interpreted the song (which reached number 2 in the UK singles chart; the Beatles' own "Get Back" prevented it from reaching the top spot), it's still this original McCartney demo that sweetly caresses with its beauty. Imagine how nicely this would fit on the White Album.