In 2022, Lennon's wife Yoko Ono sent Paul McCartney the cassette tape containing the draft of "Now and Then", which was thought to be a possible "reunion song" when the band was preparing a career anthology in 1995.
John Lennon was shot and killed in 1980 at the age of 40 in New York.
John Lennon's voice was separated from the instrument by artificial intelligence and used in a new song. Lennon's voice was taken from the demo song in the documentary "The Beatles: Get Back" directed by Peter Jackson.
All four band members take part in the song, so this song is considered to be the "last song" the band did together.
The Beatles, who parted ways 50 years ago, won 7 Grammy awards.