The Beatles' Final Performance

John and Yoko
Married on March 20 (eight days after Paul and Linda) Lennon and Ono would increasingly become involved in each other's art. She began to attend the group's recording sessions (violating a long-held unwritten rule that wives and girlfriends be barred from the studio) and he would form the first solo Beatles project with her, naming the resulting collaboration, Plastic Ono Band.

• The Beatles in Liverpool