Best known for his production work with Joey Bada$$, Mick Jenkins and the rest of the Pro Era members, he is a prolific emcee, producer and songwriter whose notable contributions include work on Joey Bada$$ 's debut album B4.DA.$$, including the album 's lead single, Big Dusty." He also worked with Joey on his earlier efforts Summer Knights and 1999. He started rapping and working on music in his early teens, but it wasn't until his Pro Era days that he began taking his music career seriously.