Halloween Topic - Musicians and deals with the Devil

As the superstitious believe, if a musician is too young to be so talented and successful they must have purchased their talent and fame in exchange for their soul. The most famous of these of course is Robert Johnson, but that’s just in American culture. I was thinking of a living and celebrated classical musician who is also young, beautiful and incredibly knowledgeable about classical music, especially American composers, and for a moment I had to genuinely wonder if her talents came from other-worldly pacts.

What musicians would you place in this category? So good and so young that you have trouble believing it?

Composers and even musical instrument makers are fair game here.