The rare condition, which causes him to lose the ability to control his voice and movement, struck during the band's set in Manchester on Saturday. He was forced to leave the stage two songs before the end of the show.

The Blackout say in a statement: "Having consulted local medical advice, in addition to what Gavin was told in hospital when the issue occurred earlier this year, it's become clear that one of the key issues in helping Gav get better is rest.