He's a singer and an actor, but as a songwriter Paul helped make Kermit a cultured frog, turned a bank commercial into a huge hit and made love both "exciting and new" and "soft as an easy chair."
Does he have beef with Gaga? Is he Sean Lennon's godfather? See if you can tell fact from fiction in the Elton John edition.
Nirvana, Billy Joel and Bruce Springsteen are among those who wrote songs with cities that show up in this quiz.
The outlaw country icon talks about the spiritual element of his songwriting and his Bob Dylan mention.
From NKOTB to 1D, how well do you know your boy bands?
How four songs portray Shakespeare's character Ophelia.