In 1962, Pete Best, the then drummer of The Beatles, was replaced by Ringo Starr and the reconstituted band recorded its first single in Liverpool. A legend was born: John, Paul, George, and Ringo?"collectively the most popular and influential rock and roll band that the world has ever seen. The Beatles came to define their era in a way that no other band or performer has managed. The band only produced music between 1962 and 1970, but in the course...