Don Arden (born Harry Levy; 4 January 1926 – 21 July 2007) was an English music manager, agent, and businessman. He managed the careers of rock acts such as Jerry Lee Lewis, Little Richard, Gene Vincent, Air Supply, Small Faces, The Move, Black Sabbath, Electric Light Orchestra, and Trickster. Arden gained a reputation in Britain for his aggressive, sometimes illegal business tactics, which led to his being called "Mr Big", the "English Godfather" and the "Al Capone of Pop".
https://en.wikipedia.org/wiki/Don_Arden