New Jersey superproducer Just Blaze was born in 1978. Born Justin Gregory Smith, he’s made hits for Jay-Z, Beanie Sigel, Jadakiss, Usher, Saigon, and many more. He got his start with Mase and Harlem World and went on a major run with Roc-A-Fella and other east coast acts. Related: 5 Rappers from NJ Just Blaze