7. "50 Ways to Leave Your Lover"
Paul Simon got his first Number One single in 1975 when he penned this goofy song following the breakdown of his marriage to Peggy Harper. It's written from the perspective of a mistress telling her lover how to break it off with his wife. "Hop on the bus, Gus," he sings. "You don't need to discuss much/Just drop off the key, Lee/And get yourself free." The rhyme pattern comes from a goofy game he was playing with his infant son Harper, not quite realizing he was laying the groundwork for the biggest pop hit of his entire career.