The Beatles had great success in the UK as early as 1963. After a year of Beatlemania in the UK, the group made a historic debut appearance on The Ed Sullivan Show in February 1964. In 1965, John unknowingly was introduced to LSD when he went to a dinner party and the host put the drug in his guests’ coffee. When John and his wife wanted to leave, their host revealed that they had taken the drug. Since his introduction to LSD, he became addicted to the drug and was almost constantly under its influence. Cynthia said that because of the drug John slowly lost interest in her. The year 1967 saw the release of “Strawberry Fields Forever”. Then they were informed of their managers unfortunate death. “I knew we were in trouble then”, John later said. “I didn’t have any misconceptions about our ability to do anything other than play music, and I was scared”.John and Yoko Ono were married on 20 March 1969. John and his new wife recorded three new albums together: Unfinished Music No.1: Two Virgins, Unfinished Music No.2: Life with the Lions and Wedding Album. In 1969, they released Live Peace in Toronto 1969. John left the Beatles in September 1969 and agreed not to tell the media while the band renegotiated their contract. He was outraged when Paul publicised his own departure on releasing his debut solo album in 1970. John’s debut solo album, John Lennon/Plastic Ono Band, featured the song “Mother”, in which John confronted his feelings of childhood rejection.While John was recording his next album he and Yoko decided to separate. Mind Games was released in November 1973. John also helped write “I’m the Greatest” to Ringo’s album Ringo, released the same month. In early 1974, John decided to produce Nilsson’s album Pussy Cats, John returned to New York with Pang to finish work on the album. In April, John produced the Mick Jagger song “Too Many Cooks (Spoil the Soup)” which remained unreleased for over 30 years.John was settled back in New York when he recorded Walls and Bridges. Released in October 1974, it included “Whatever Gets You thru the Night”, featuring Elton John on back up vocals and piano. A second single from the album, “#9 Dream”, followed before the end of the year.John co-wrote “Fame”, with David Bowie, providing guitar and backing vocals for the recording. The same month, Elton John topped the charts with “Lucy in the Sky with Diamonds”, featuring John on guitar and backup vocals. He and Ono reunited shortly afterward. John released Rock ‘n’ Roll, an album made of cover songs in 1975.Johns only child with Yoko was born on 9 October 1975. Because of this John took a five-year hiatus. During his time off he gave all his attention to his wife and son. He devoted himself to Sean, rising at 6 AM every day to prepare his meals and to spend time with him. He wrote “Cookin’ (In the Kitchen of Love)” for Ringo’s Rotogravure in 1976.After an evening at the Record Plant on 8 December 1980, John and Yoko returned to their apartment at around 10:50 p.m. They had just got out of the vehicle when gunman Mark David Chapman shot John three times in the back, once in the shoulder. John was rushed to a police car to a nearby hospital, where he was pronounced dead.The next day Yoko made a statement saying, “There is no funeral for John”, ending it with the words, “John loved and prayed for the human race. Please do the same for him.” Yoko scattered his ashes in Central Park, where the Strawberry Fields memorial was later created. Mark David Chapman avoided going to trial, and he ignored his attorney’s advice and pleaded guilty to second-degree murder. He was sentenced to 20-years-to-life and is still in prison.