On June 18, 1963, Paul McCartney celebrated his 21st birthday at the home of his Aunt Jin in Huyton, Liverpool.The gathering brought together many notable figures from the Merseybeat music scene and included performances by local band The Fourmost, who reportedly played free of charge at McCartney’s request.Paul’s brother Mike also appeared with his comedy group, Scaffold.Guests included all four members of The Beatles, Paul’s girlfriend Jane Asher, singer Billy J.Kramer, and members of The Shadows.

Although the event began as a festive celebration, it later became infamous because of a violent incident involving John Lennon and Cavern Club DJ Bob Wooler.

During the evening, Wooler repeatedly joked about Lennon’s recent trip to Spain with Beatles manager Brian Epstein, making remarks that implied a romantic relationship between the two men.Lennon, who was heavily intoxicated at the time, reacted angrily and attacked Wooler, striking him with his fists and reportedly using a stick.Wooler suffered injuries including bruised ribs and a black eye and required medical treatment.The incident alarmed those around Lennon, who had to be physically restrained and removed from the confrontation.Concerned that the episode could damage The Beatles’ rapidly growing reputation, manager Brian Epstein took steps to manage the situation.Wooler was taken to a hospital, while Lennon was escorted away from the party.Lennon later apologized and paid Wooler an out-of-court settlement of £200, avoiding a potentially damaging legal case.

In later reflections, Lennon described the attack as a turning point that convinced him to abandon personal violence, realizing how close he had come to causing far more serious harm.