"Eleanor Rigby" (1966)
This melancholy track further proved to the world that The Beatles were not just a flash in the pan. Paul wrote the lyrics to this song about "all the lonely people," and producer George Martin added a lush string score. It all meshed together to describe the loneliness of old age. It hit the top of the charts in the U.K. but only made it to number 11 on U.S. charts.