Fifty years ago today, August 26, 1968, the Beatles released the song "Hey Jude."

The song was written by Paul McCartney and credited to Lennon and McCartney.

Originally "Hey Jules" in support of John Lennon's son Julian during his parents' divorce, "Hey Jude" was the first single released by the Beatles' record label, Apple Records.

Seven minutes, 11 seconds in length, Hey Jude was one of the longest singles ever released at that time. It spent 9 weeks at number 1 in the Billboard Hot 100 chart, the longest of any Beatles song.

The single has sold over 8 million copies in the U.S. placing it in the top 50 selling songs of all time, topped by just one other Beatles song, "I Want to Hold Your Hand."