Mark "MSD", Frederick aka MS (Mad Skills), DJ Marky Mark is a music producer, songwriter, rapper, broadcaster and music executive. Mark has produced, remixed, promoted many major artist including Eric Benet, Joe, Cypress Hill, Carl McIntosh, Da Brat, Onyx, 2Pac, Biggie, Brownstone, Sounds of Blackness, hosted several radio shows and been signed to several major record labels.