Justy Arceneaux, professionally known as J.K., or Slim Gucci (stylized as $lim Gucci) is an American producer and rapper, as well as the younger of brother of Scott Arceneaux, Jr. of $uicideboy$.
J.K. was an early alias for Arceneaux, it is used on both of his contributions to the #DrugFlow series of mixtapes well before he started producing. He was ten when he recorded Ballin', and eleven when he recorded Big Time.