The Disturbed man was their second bassist, and joined two years ago in time to appear on second album Men Of Honor. But the supergroup - completed by vocalist Russell Allen, guitarist Mike Orlando and drummer AJ Pero - say they weren't consulted before Moyer tweeted last night: "Thanks to all the @AdrenalineMob fans for the support. Unfortunately I will not be joining them on this next run. My best to the boys!"

They responded by announcing: "We're totally shocked by John Moyer's announcement that he will not be touring with us in September. We knew he had some other commitments that might have caused him to possibly pull out, but we were hoping to have him on board. Obviously he's got something else going on.

"We wish him all the best and he will be missed, but Adrenaline Mob will be doing the shows. We will announce the new bassist as soon as we have one."