Paul McCartney is using AI to create a final song for The Beatles

Paul McCartney has revealed to BBC Radio 4 that he's using AI to turn a John Lennon demo into one last song for The Beatles. The technology helped extract Lennon's voice to get a "pure" version that could be mixed into a finished composition. The piece will be released later this year, McCartney says. McCartney didn't name the song, but it's believed to be "Now and Then," a 1978 love song Lennon put on cassettes meant for the other former Beatle. The Guardian notes the tune was considered for release as a reunion song alongside tracks that did make the cut, such as "Free As A Bird," but there wasn't much to it -- just a chorus, a crude backing track and the lightest of verses.