John Lennon sang “Stand by Me” at his last ever solo live performance.
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Mark David Chapman was sentenced to 20 years to life in prison for murdering John Lennon.
John Lennon released his second album, 'Imagine.'
John Lennon and Yoko Ono left the UK and headed to New York City, US.
John Lennon and Yoko Ono marry.
John Lennon's most iconic hit, 'Imagine,' was released in the UK.
