Machine Gun Kelly Fires Back at Eminem With Scorching Diss Track 'Rap Devil': Listen

Less than a week after Eminem took aim at Machine Gun Kelly on his surprise album Kamikaze, the latter has fired back at his former idol with the diss track "Rap Devil." A play off Eminem's 2013 track "Rap God," MGK's "Rap Devil" dumps on everything from Em's "weird" beard to being "sober and bored."