'Once upon a time') is the third studio album by French rapper Black M, released on 13 September 2019.

It consists of 17 tracks including 9 featurings with Bigflo & Oli, Heuss l'Enfoiré, Soolking, PLK, Koba LaD and Niro.

He released the first single from this future album on 3 June 2019 which is called Bon (Prologue).

On 13 September 2019, three years after the release of his previous album, Black M released his third studio album, Il était une fois... During its first week of operation, the disc sold only 5,600 copies, reaching 9,000 sales at the end of the third week.

Despite good promotion and several appearances on television, the record was a real commercial failure.