Who wrote the 1966 Beatles song that went on to number one in seven countries?
Paperback Writer:  Written by Paul McCartney and John Lennon (credited to Lennon–McCartney), the song was released as the A-side of their eleventh single. Paperback Writer:  The single went to the number one spot in the United States, United Kingdom, Ireland, West Germany, Australia, New Zealand and Norway.
i don't know