OutKast's much-anticipated film and soundtrack album 'Idlewild' are to be released in August.

Billboard reports that the Big Boi and Andre 3000-starring film will be released in US cinemas on 25 August with the soundtrack in the shops three days earlier.

The first single from the album will be 'Mighty O', which features the duo reworking Cab Calloway's scatting from the classic song 'Minnie the Moocher'.

The film 'Idlewild' is set in the 1930s in the world of the speakeasy and features appearances from Patti LaBelle, Macy Gray and Oscar-nominated 'Hustle & Flow' star Terrence Howard.