When Paul McCartney wrote “Yesterday,” it was a new day for The Beatles — and especially for his relationship with John ...

“From the beginning they were equals, and ‘Yesterday’ wasn’t only just a hit, but the song that more artists covered than any other Beatles song. Paul even sang it onstage by himself when they ...

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.