Drama alert! Hilary Duff‘s fiancé, Matthew Koma, took to Instagram on Wednesday, June 5, to go OFF on his former friend and collaborator, Zedd. In a lengthy message shared with his followers, the 32-year-old used words like “toxic” and “self-serving.”

“In response to years of: ‘What happened with you & Zedd.’ I want to finally be transparent about this … it’s a really sad truth because I’m extremely proud of the work he and I did together … ” the father-of-one began. “Unfortunately, my good feelings toward those songs have all but disappeared as they were experienced alongside someone so toxic and self-serving that it occupied the space where any happiness could exist. It’s not that dramatic of a story and comes down to something simple. S–ty people suck, and when they’re successful, people are afraid to blow the whistle.”

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Matthew went on to say that the 29-year-old record producer, whose real name is Anton Zaslavski, has an “inferiority complex” and would take credit for their songs without even mentioning him. “More or less, I was just brushed under the rug while he took all the credit,” he continued. “Which felt confusing because the millions of people who connected to ‘Clarity’ and those other songs, seemed to connect to the lyrics/emotion/melodies I had written. But he deemed his Kick Drum sound the driving force and left me out of all shared credit.”

Banks’ dad concluded that he’s not the only one in the biz who feels this way. “For years I thought maybe it was me, but over time, I’d run into other people who worked with him — other writers/singers/producers/DJ’s/people on his own team … and the sentiment was shared. He’s the worst.”

“I’d rather work at Starbucks and clean toilets than ever experience that abusive dynamic again.” Well, OK then! Happy Thursday?

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