Machine Gun Kelly unleashed four intense verses on Eminem this morning with "Rap Devil".

It's part of a long-running intergenerational beef between the two, which began in 2012 when MGK Tweeted that Shady's daughter Hailie was hot and came to a head when Em dissed MGK on his new Kamikaze track "Not Alike."

Here's how Twitter is reacting to Kelly escalating things.

MGK just dissed Eminem and name dropped Hailey. pic.twitter.com/HbEvXCpw7y

— B-Fine 🎢 (@BrettFine21) September 3, 2018

Eminem: “Come at me with a sub, Machine Gun, I'm talkin' to you, but you already know who you R Kelly...like a fuckin' cocked semi Glock, demi-god, let me put a fucking silencer on this little non-threatening blond fairy cornball takin' shots at me”

MGK: “Your beard is weird” pic.twitter.com/ore99b9xcc

— Nathanael Scott (@nscott97) September 3, 2018

Machine Gun Kelly bodied Eminem.... #LetsTalkAboutIt

— The Old Man (@oldmanebro) September 3, 2018

Wow...as much as I wanted Machine Gun Kelly diss to be whack..he actually slaughter Eminem..let’s just hope Eminem don’t have a relapse and turn back into Slim Shady 👀

— Cash (@CashNastyGaming) September 3, 2018

I think its safe to say Machine Gun Kelly has the best diss ever to Eminem. Its a very short list though.

— IG: Mickey.Factz (@MickeyFactz) September 3, 2018

This is what it’s all about.
😈🎤😈🎤😈

— MichaelRapaport (@MichaelRapaport) September 3, 2018

Thank you Machine Gun Kelly for sacrificing your career so we can hear another Eminem diss track

Regards
Stan

— Zubair (@ZubiDoobiDoo) September 3, 2018

Eminem hearing Machine Gun Kelly’s reply and realising he’s almost 50 and about to end another career: pic.twitter.com/WmfRL1CzbU

— 38% battery (@40_40vision) September 3, 2018

Machine Gun Kelly and Eminem beef bout to create a damn Civil War on Mountain Dew Code Red Twitter 😂😂 https://t.co/fT7d9jCBRf

— Tyler Conway (@jtylerconway) September 3, 2018

Diddy at home tryna figure out how to keep himself out of what Eminem is about to do to MGK pic.twitter.com/Lg0cz6HeqO

— ☀️🐰 (@SunnyBunny_54) September 3, 2018

Machine Gun Kelly vs Eminem. Haven’t seen white men dueling like this since Robert E Lee vs Ulysses S Grant

— Ricky Smith (@Rickonia) September 3, 2018

What do you think?