John Lennon (in 1980) - "Written together in the same room."
Paul McCartney (in 1994) - "We wanted to write something a little bit darker, bluesy... It was very much co-written and we both sang it. Sometimes the harmony that I was writing in sympathy to John's melody would take over and become a stronger melody... When people wrote out the music score they would ask, 'Which one is the melody?' because it was co-written that you could actually take either. We rather liked this one."
