daughter Kyoko Chan Cox two months later, on August 8, 1963. The marriage quickly fell apart, but the couple continued working together for the sake of their joint careers. They performed at Tokyo's Sogetsu Hall, with Ono lying atop a piano played by John Cage. Soon, the couple returned to New York with Kyoko. In the early years of the marriage, Ono left most of Kyoko's parenting to Cox while she pursued her art full-time, with Cox also managing her publicity. Ono had a second engagement at the Carnegie Recital Hall in 1965, in which she debuted Cut Piece. In September 1966, Ono visited London to meet artist and political activist Gustav Metzger's Destruction in Art Symposium in September 1966. She was the only woman artist chosen to perform her own events and only one of two invited to speak. She premiered The Fog Machine during her Concert of Music for the Mind at the Bluecoat Society of Arts in Liverpool, England in 1967. Ono and Cox divorced on February 2, 1969, and she married John Lennon later that same year. During a 1971 custody battle, Cox disappeared with their eight-year-old daughter. He won custody after successfully claiming that Ono was an unfit mother due to her drug use. Ono's ex-husband changed Kyoko's name to "Ruth Holman" and subsequently raised the girl in an organization known as the Church of the Living Word (or "the Walk"). Ono and Lennon searched for Kyoko for years, but to no avail. She would finally see Kyoko again in 1998. Relationship with John Lennon Ono's first contact with any member of the Beatles occurred when she visited Paul McCartney at his home in London to obtain a Lennon–McCartney song manuscript for a book John Cage was working on, Notations. McCartney declined to give her any of his manuscripts but suggested that Lennon might oblige. Lennon later gave Ono the original handwritten lyrics to "The Word". Ono and Lennon first met on November 7, 1966, at the Indica Gallery in London, where she was preparing Unfinished Paintings, her conceptual art exhibit about interactive painting and sculpture. They were introduced by gallery owner John Dunbar. One piece, Ceiling Painting/Yes Painting, had a ladder painted white with a magnifying glass at the top. When Lennon climbed the ladder, he looked through the magnifying glass and was able to read the word YES which was written in miniature.