BLACK DIAMONDZ MUZIK GROUP The production operation is the "backbone" of Masta Key Records. Our production company is run by the #1 All Female production team "Black Diamondz Muzik Group". This team consists of two female producers/engineers, J. Foxx and Black Widow. Their originality and creativity is taking them to the top of the charts! The process of mixing, Mastering, and testing our products is non-stop. Our Executive Producer/CEO, J. Foxx, a 26-year-old woman, who has more than ten years of experience, manages the operations.