A 14-minute hidden Beatles track called "Carnival of Light" will bring the fabulous band back into the music charts once again, as Sir Paul McCartney announced that a "lost" Beatles track recorded in 1967 and performed just once in public will finally be released.

According to McCartney this is by far the most experimental track the Beatles ever put to tape. It appears the band played the recording for an audience just once, at an electronic music festival in London. It reportedly includes distorted guitar, organ sounds, gargling and shouts of "Barcelona!" and "Are you all right?" from McCartney and John Lennon.

He also told BBC Radio 4 regarding "Carnival of Light" that "the time has come for it to get its moment" and that it shows the Beatles "going off piste." But in order to enable it to be made public, McCartney needs the approval of Ringo, as well as the widows of Lennon and Harrison, Yoko Ono and Olivia.

"All I want you to do is just wander around all the stuff, bang it, shout, play it," he said of his instructions to the group. "It doesn't have to make any sense. Hit a drum then wander on to the piano, hit a few notes, just wander around. That's what we did. And then we put a bit of echo on it. It's very free."

The reason for keeping "Carnival of Light" from the fans, it seems, is that every Beatle but McCartney thought the tune was too adventurous. Therefore “it was not considered worthy of issuing as a normal piece of Beatles music at the time and was put away," according to Beatles producer Sir George Martin. Apparently, the track is a "jumble of shrieks and psychedelic effects" that "features the sound of gargled water and strangled shouts from [John] Lennon which vie with church organs and distorted guitar."

Moreover George Harrison, cleverly, dismissed the track as "avant-garde a clue", and despite McCartney's pleas, it did not make the cut for the band's mid-90s “Anthology” collections. But despite any negative opinions, the track gained legendary status among hardcore Beatles fans.

Sir Paul was commissioned by his friend Barry Miles to make a track for the 1967 Million Dollar Light and Volt Sound Rave at the Roundhouse Theatre in London. Drawing inspiration from the composers Karlheinz Stockhausen and John Cage, "Carnival of Light" was duly recorded at the Abbey Road studios while the band was working on the vocals for "Penny Lane".

Throughout the years, Beatles enthusiasts have spent countless hours hunting down unreleased material. Sadly, all too often such endeavors ended in disappointment. Let’s hope for something big his time. They definitely deserve it.