Machine Gun Kelly gets into fight with slipknot fan during performance at Louder Than Life fest

See Machine Gun Kelly Get Relentlessly Booed at Metal-Leaning Louder Than Life Fest

Machine Gun Kelly gets booed and flipped off at Louder Than Life Festival in Louisville

Machine Gun Kelly’s Reaction To GF Megan Fox’s Sexy SKIMS Shoot With Kourtney Kardashian Revealed