The Beatles wouldn’t have been as massively popular as they became without infectious hit tunes. Chalk one (or several) up for Paul, whose songs became some of the Fab Four’s biggest No. 1 hits.

Ringo Starr (born Richard Starkey) got his start drumming for another Liverpool group -- Rory Storm and the Hurricanes -- before he was asked to step into Pete Best's vacant spot in the Beatles in ...