Leeroy is Moon Man's cousin on Moon Man's mother's side. Leeroy's father died when Leeroy was a teenager, so he was sent to live with his grandmother (the mother of Moon Man's mother) on the north side of Sacramento, where he developed a passion for rapping while spending time with his rap star of an older cousin. Leeroy once worked as the bodyguard for Max Goldberg from YTMND, during which time he adopted the name Lightning Bolt Man. In spring of 2016, Moon Man and Leeroy recorded a whole EP together, called Moonman and Leeroy.