Julian Lennon stepsister, Kyoko Chan Cox. Paul McCartney wrote "Hey Jude" to console him over the divorce; originally called "Hey Jules", McCartney changed the name because he thought that "Jude" was an easier name to sing. After his parents' divorce, Julian had almost no contact with his father until the early 1970s when, at the request of his father's then short-term girlfriend, May Pang (Yoko Ono and Lennon had temporarily separated), he began to visit his father regularly. John Lennon bought him a Gibson Les Paul guitar and a drum machine for Christmas 1973, and encouraged his interest in music by showing
John Lennon she had been working with the couple for three years, Ono confided that she and Lennon were becoming estranged. She went on to suggest that Pang should begin a physical relationship with Lennon, telling her, "He likes you a lot." Pang, 22, astounded by Ono's proposition, eventually agreed to become Lennon's companion. The pair soon moved to California, beginning an 18-month period he later called his "lost weekend". In Los Angeles, Pang encouraged Lennon to develop regular contact with Julian, whom he had not seen for two years. He also rekindled friendships with Starr, McCartney, Beatles roadie Mal Evans, and