That hasn't been confirmed by the band - but a tweet by Weinberg's former colleague Laura Jane Grace seems to support the rumours. Weinberg, 24, was a member of Grace's band Against Me! for two years until December 2012, after a stint with Madball. Grace tweeted today: "Dear Slipknot, good luck with that. #sh*tbag."

She'd previously said she had no idea how or why Weinberg quit her outfit, saying: "I woke up one morning and read on Twitter that he was leaving. I have never talked to him since."