All you need is AI: Beatles' “Now and Then” wins the band their eight Grammy

The Beatles have won their eighth Grammy Award with "Now and Then," a song completed using machine learning technology that revived a decades-old John Lennon demo. The track beat out rock bands like Green Day, Pearl Jam, and The Black Keys.
The song, completed in 2021 using advanced sound isolation techniques, won Best Rock Performance at the 2024 Grammy Awards, beating out contemporary rock bands like Green Day and Pearl Jam. John Lennon's son, Sean Ono Lennon, accepted the award, praising the band as "the greatest of all time."
The track originated from a lo-fi demo Lennon recorded in the late 1970s, which remained unreleased due to technical limitations preventing vocal and instrumental separation. Filmmaker Peter Jackson's sound team developed machine-learning algorithms that could precisely extract and clean Lennon's original vocals and piano, enabling Paul McCartney and Ringo Starr to finally complete the song.
McCartney was quick to dispel misconceptions about artificial intelligence's role, emphasizing that no synthetic elements were created. "It's all real and we all play on it," he stated, clarifying that the AI merely helped clean up existing recordings—a technique that has been evolving for years.