Lioness: Hidden Treasures is a posthumous compilation album[2] by English singer and songwriter Amy Winehouse.

It features unreleased songs, covers and demos selected by Mark Ronson, Salaam Remi and Winehouse's family, including the first single, "Body and Soul", with Tony Bennett.

[5] Island Records co-president Ted Cockle emphasised that Lioness is not in any way the planned follow-up to Winehouse's album Back to Black (2006).

Coming to Miami was her escape from all of that, and her writing process could document her life, whether it was recording the pain or the loneliness or the humour.

The Chris Moyles Show aired the first play of "Our Day Will Come", while DJ Twin B broadcast the world premiere of "Like Smoke", which features Nas.

"[19] AllMusic editor John Bush felt that "only the songwriting and prevalence of covers or 'original versions' reveal that this is a posthumous collection", crediting Salaam Remi and Mark Ronson for making the album "strikingly uniform".

[25][26] It was certified triple platinum by the British Phonographic Industry (BPI) on 26 June 2020, denoting shipments in excess of 900,000 copies in the United Kingdom.

[35] The International Federation of the Phonographic Industry (IFPI) certified the album platinum in late 2011, denoting sales in excess of one million copies in Europe.