Machine Gun Kelly is firing back at Eminem following his “Killshot” diss.

While performing on Fall Out Boy’s “Mania Tour” at the Amway Center in Orlando on Sunday night (Sept. 16), MGK addressed his feud with Eminem during his opening set.

“I heard that weak ass shit,” he told the crowd. “It just confirms what I said already…Knees weak of old age old. The real Slim Shady can’t stand up.”

He shouted “F**k Marshall Mathers” before launching into his Eminem diss track “Rap Devil.”

The Cleveland rapper later posted a photo from the show on Instagram. He captioned it “He missed” along with a series of emojis including the devil, knife, and goat.

Kelly previously responded to “Killshot” on Twitter, rating it a six out of 10. “2 weeks and 3 interviews later…” he said of the track, which was a response to his own “Rap Devil” diss.

Another “Killshot” target, Iggy Azalea, also weighed in on Em’s bars. “Diss songs shouldn’t be filled with celebrity name drops to pad out lazy bars,” tweeted the Aussie rapper. “One of the greatest to do it, I’m NOT in dispute about that. But I do think the name dropping thing has become a [crutch].”

Eminem’s longtime rival Ja Rule, who was also named on “Killshot,” responded to Em’s latest diss on Instagram.

“The more Em Mentions my name the more I realize how fucking LEGENDARY I am,” said Ja. “I was killing the game so hard that all the biggest rappers in the industry (at the time) joined forces to dethrone the God… lmao… in the history of hip hop name another time that has happened let alone accepted… and I handled it like a MAN on the MIC and in them STREETS lol… my music is TIMELESS… love and peace to everybody!!!”

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