"People have been bringing in birthday cards for Sir Paul, and our Cavern was full all the time, with about 30 people taking part in the karaoke competition over the weekend.
"Rhoel Tupaz won it against stiff competition because it was such a professional, confident performance.
"Joe Flannery, a booking agent who worked for Beatles' manager Brian Epstein, also got up on the stage and told a story about how the boys were in his house before they were famous, and were joking about what they wanted to do when they were 40.
"Apparently, Paul said he would be a window cleaner."