“ ‘Yesterday’ feels like a shift in the balance of power,” says Leslie. “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 performed. And it triggered John’s insecurities.”

Paul McCartney has opened up about the end of The Beatles and admitted tensions were high between himself and John Lennon, with the pair writing diss tracks about each other

The Ramones were a punk rock group that formed in the early 1970s, and they are widely regarded as one of the most influential bands in the genre's history