The 36-year-old DJ slammed the 25-year-old producer's career by claiming he has stopped being ''cool'' and he and his record label are just focused on record sales, before then insisting his rival's recent romance with the former Disney star - who he split from in April after four months of dating - was manufactured to create a bigger fanbase.
He told Radio.com: ''I just think that [Zedd] came from such a cool place, and now he's been pegged as a money-maker for a major label to do EDM, which to me isn't even a genre. But they've pegged him for that, they've marketed him, even the fake relationship with Selena Gomez, all the things to sell records took away from the music.''
And this isn't the first time Diplo - who was previously involved in an online feud with Selena's close friend Taylor Swift - has attacked Zedd recently.
In a tweet which was later deleted, he posted about the DJ's new album last month: ''True Colors is such a pile of [c**p] (sic)''
Prior to their split, Zedd gushed about Selena being ''incredible'' and great to work with.
Referring to their collaboration on the song 'I Want You To Know', he said: ''[She is] incredible at taking directions, because I actually was in the studio with her. Singers don't always take direction well, because sometimes they feel like you get in their zone and I don't have to be there.
''She was great, you know, trying to emulate exactly what I wanted to hear and didn't take anything personally. When I would say, 'Try this instead of that', or 'Give me more vibrato on this one, and a straight note on this one', she was exactly precise like I asked her to be.''
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