London, July 2 Michael Jackson has left behind a mass of unreleased recordings that did not make it onto the records.

Tommy Mottola, the former chairman and CEO of Sony Music, which owns the distribution rights to the singer's music, confirmed there were stacks of previously unheard Jackson songs that might be repackaged and released in future. "There are dozens and dozens of songs that did not end up on his albums. People will be hearing a lot of that unreleased material for the first time ever. There's just some genius and brilliance in there," the Telegraph quoted him as saying.

The material includes unused tracks from studio sessions of some of the late King of Pop's best albums, along with more recent tracks compiled with Akon, a Senegalese R andB singer and producer, and will.i.am, the Black Eyed Peas frontman.

Mottola, who explained himself as the as the "shepherd and gatekeeper" of Jackson's catalogue, added, the releases "could go on for years and years - even more than Elvis."

However, who would hold the ownership rights to Jackson's unreleased music and concert footage still remains to be cleared. (ANI)