What jazz musician was known as "The Prince of Darkness"?

In the world of jazz music, most artists were often given their nicknames somewhat quickly. In the case of the The Prince of Darkness, Miles Davis was reputedly given this nickname quickly as a result of his dark attire and attitude for playing his trumpet in a lyrical, introspective, and melodic style. It was said that he often employed a stemless Harmon mute to make his sound more personal and intimate.

Additionally, in reference to Davis' aloof brooding play on stage, the nickname was often cited to pertain to the fact that he would routinely turn his back to the audience.

As The Prince of Darkness, Miles Davis' approach to jazz was dazzlingly volatile. To examine his career is to examine the history of jazz from the mid-'40s to the early '90s; he often led the way to very important innovation, change, and stylistic development in jazz. It can even be argued that jazz stopped evolving when Davis wasn't there to push the music forward.