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Deadmau5 is not a guy to shy away from beef: The dude is completely unafraid of speaking his mind, which can result in some not-so-nice back-and-forth. His disagreement with Skrillex started this year when he dissed the DJ's collabo with Diplo as Jack Ü and Justin Bieber"Where Are Ü Now." Skrillex responded by telling New York's 92.3 AMP radio station the following:

"I'll always have love for Joel, because he’s put me on at an early time. But he's an asshole. And everyone knows that, he knows that. I think that’s kinda his thing. The one thing that is unfortunate about it is he has a record label and when you have a record label you've got to be a leader and he has people that are signed to him. I couldn’t imagine being a leader, going out [with] a public image being such a negative attitude."

Mau5 tweeted then deleted that he doesn't "give a f*ck tbh." Got all that?

This weekend, Skrillex revived their beef with a series of harsh tweets over the producer's managerial skills. As expected, Deadmau5 was quick to respond. When will the feuding end? Check it out below.