Amy Winehouse had been planning on forming a 'supergroup' prior to her death, her producer Salaam Remi has said. Winehouse had begun preparations on a jazz album, which was to feature Questlove of The Roots and saxophonist Soweto Kinch, as well as a "bunch of other names".

Remi said that Winehouse had written down extensive plans for the musical project and had worked with Questlove on the recordings which would go on to feature on Lioness: Hidden Treasures, her first posthumous album.

The album is due out on December 5th.