"Well the opening 'dj' at the club decided to have a go at me," Deadmau5 said via Twitter. "So f--- him and f--- that club. I left."
According to NME, Deadmau5 -- who had performed at Creamfields earlier in the evening -- was attending the party at the Birdee Num Num when he approached a local DJ and asked him to change the song selections and walked away.
"Opening DJ came at me later in the night and decided to punch me in the back of the head," Deadmau5, born Joel Zimmerman, wrote via Twitter. A previous tweet added "Thank God for Creamfields tonight, cause the music at the after party is f---ing god awful."
There is no word as to if Deadmau5 was sporting his massive, titular mouse head at the time of the incident. Nor is there info regarding the identity of the assailant or if any charges may be laid, but Australian producer Sampology reportedly added more information via Twitter -- though it appears the post has been deleted since then.
"Just found out a mate of mine punched Deadmau5 in the head at the Creamfields after party," he wrote. "Apparently my mate was DJing and Deadmau5 was harassing him for his tune selection and got up in his space so he dropped him."
"As posted earlier I wasn't there so don't know the full story," Sampology said via Twitter on Monday (May 2). "I'm totally not down with violence for the record."
Deadmau5 -- who recently remixed the Foo Fighters' single 'Rope' -- continues his tour of Asia and Southeast Asia this week with a show tonight (May 4) in Bangkok. The musician released his last award-winning studio album, '4x4=12,' last year.