So, apparently there is an unreleased 14-minute experimental track that was recorded at the height of the Beatles' musical experimentations with psychedelia called "Carnival of Light." The avant-garde track has long been considered too adventurous for mainstream audiences, but that may all change in the coming months.
In an interview for BBC radio, McCartney said his bandmates and their producer George Martin had vetoed its inclusion on the exhaustive 1990s "Anthology" collection, according to UK's The Observer newspaper.
McCartney confirmed he still owned the master tapes, adding that he suspected "the time has come for it to get its moment," The Observer reported. "I like it because it's the Beatles free, going off piste," McCartney said.
Here's a little taste of the Fab Four to get you ready...