Lost Horizon

“Lost Horizon” is a track from the album “The Boys Of Dungeon Lane“, released in 2026.

On March 30, 2026, a version of “Lost Horizon” leaked on YouTube, but it was in fact a fake created using artificial intelligence. Bill King, from Beatlefan magazine, contacted Steve Martin, Paul’s press officer in the US, who confirmed: “This is a fake.”

After work had begun with Watt, McCartney said, he began looking at older tracks he’d laid down. He talked at length of “a great friend of mine,” Eddie Klein, who used to work at Abbey Road and had helped him build him home studio, and who died in 2020. Showing just how far back this goes, he said, “Eddie was transferring things from an old format to a more modern format, from tape cassette to DAT” (itself a long-bygone format). “He was doing this and doing that, and he was doing DAT,” McCartney punned, adding, “I was up all night thinking of that.” Klein asked him if he remembered doing “Lost Horizon,” which McCartney had long forgotten. (He did not put a date on the original inception of the song, but if possibly predated even the adaptation of DAT, which was around from the late ’80s through early 2000s, it must go back quite a ways indeed.)

Cut to the 2020s, and McCartney resurrected it on his own, “reproducing it exactly like the cassette, only just a more modern sound,” and then brought it to Watt for additional guitar work. “This is the track that came back from the past and nearly got lost, and good old Eddie found it. … Thank you, Eddie.”

From Variety, April 17, 2026 – From the “Boys of Dungeon Lane” listening session, April 16, 2026

The late Eddie Klein, who worked with the Beatles at Abbey Road and then with McCartney at his studio in Sussex, England, found the track that McCartney said he didn’t remember writing or recording. In England, “we produced it exactly like the cassette,” McCartney said, and then brought it to Los Angeles to add guitar parts. The chugging, mid-tempo track is a nostalgic look back, with lyrical reminders that “time makes every moment count” and “you gotta live for now.”

From Billboard, April 17, 2026 – From the “Boys of Dungeon Lane” listening session, April 16, 2026

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