"Mama Chicago" was originally released in 1979 and is a jazz cabaret with lyrics by Kate Westbrook and Michael Kustow, with music by Mike Westbrook. The album included material originally commissioned in 1976 by the Crucible Theatre, Sheffield, for a musical about Al Capone. "Mama Chicago, the Jazz Cabaret", was originally performed by the Mike Westbrook Brass Band, featuring the voices of Kate Westbrook and Phil Minton. It premiered at the Open Space Theatre, London in 1978 and also won the Edinburgh Festival Fringe Award 1978. There were many subsequent performances in London and extensive touring in Britain and Europe.