A previously unheard Led Zeppelin track is set to be released for the first time.
The song, titled La La, was recorded during studio sessions for 1969 album Led Zeppelin Ii, and was discovered among a treasure trove of unreleased recordings.
The song will be remastered and included on an upcoming re-release of the album, which will be reissued with a companion disc along with Led Zeppelin's other records.
Former bandmember Jimmy Page admits wading through vaults of unreleased material was a major challenge.
He says, "The material on the companion discs presents a portal to the time of the recording... It is a selection of work in progress with rough mixes, backing tracks, alternate versions, and new material recorded at the time."