The Beatles returned to the top of the U.K. music charts Friday with the record-breaking track "Now And Then," making history as the act with the longest gap between its first and last No. 1 single.

Billed as the last Beatles song, "Now And Then" features the voice of the late John Lennon and was developed using artificial intelligence. It also features parts recorded by surviving members Paul McCartney and Ringo Starr as well as the late George Harrison.

The group's 18th U.K. No. 1 hit, it brings the Beatles back to the top of the Official Singles Chart 60 years after the group's first No. 1 single, "From Me to You." The feat also extends the Beatles' record as the British act with the most U.K. No. 1 singles in Official Charts history.

"It’s mind-boggling. It’s blown my socks off," McCartney said in a statement. "It’s also a very emotional moment for me. I love it!"

The song is the fastest-selling single of the year to date in Britain with 48,600 physical and download sales based on its first seven days, the Official Charts Company said.

It is also the fastest-selling vinyl single of the century so far in Britain with more than 19,400 copies sold on vinyl, and the most-streamed Beatles track in one week, with 5.03 million streams, it added.

The group is also the act with the longest gap between No. 1 singles — 54 years — and the oldest band to score a U.K. No. 1 single, the Official Charts Company said. McCartney is 81 while Starr is 83.

"Beatlemania has returned this week," Official Charts Company Chief Executive Officer Martin Talbot said.

“The return of John, Paul, George and Ringo with the last ever Beatles single ... has cemented their legend by breaking a catalog of records — and in doing so underlined the extraordinary scope of their enduring appeal, across all the generations."