Illa J is American rapper and producer John Derek Yancey, the younger brother of the late J-Dilla and a founder (and former) member of Slum Village.
He released his debut album, "Yancey Boys" in 2008, followed by: "ILLA J" (2015), "Home" (2017), "John Yancey" (2018), plus 2023's: "No Traffic".