A "final Beatles record", created with the help of artificial intelligence, will be released later this year, Paul McCartney told the BBC in an interview broadcast on Tuesday. "It was a demo that John (Lennon) had, and that we worked on, and we just finished it up," said McCartney, who turns 81 next week. The Beatles -- Lennon, McCartney, George Harrison and Ringo Starr -- split in 1970, with each going on to have solo careers, but they never reunited. Lennon was shot dead in New York in 1980 aged 40 while Harrison died of lung cancer in 2001, aged 58. McCartney did not name the song that has been recorded but according to the BBC it is likely to be a 1978 Lennon composition called "Now And Then". The…