Learn more about how Harrison inadvertently helped McCartney write "Band on the Run" while in legal discussions about their ...

John Lennon and Paul McCartney were each other’s favorite audience. That was plainly clear as the besotted Beatles bantered, bickered and obsessed over the 23 years they were friends and rivals.

The Beatles secured their first U.S. number one with I Want to Hold Your Hand and within days Paul McCartney had written the ...