This sad song about unrequited love, also released after The Beatles disbanded, would prove to be the group's last number-one song in the United States. Paul reportedly wrote the song during a time when tensions were mounting among the band members.
Helen Davies, Marjorie Dorfman, Mary Fons, Deborah Hawkins, Martin Hintz, Linnea Lundgren, David Priess, Julia Clark Robinson, Paul Seaburn, Heidi Stevens, and Steve Theunissen
HowStuffWorks looks in to the identity of the infamous sister Christian. And we apologize upfront that the song will be stuck in your head all day.