The drummer from Aussie band 5 Seconds of Summer told fans he'd suffered 'symptoms of a stroke' while performing in the US.
Ashton Irwin, 27, was live on stage with bandmates Luke Hemmings, Michael Clifford and Calum Hood in Texas when he began feeling unwell.
Taking to Twitter, he explained: “I suffered from an intense migraine brought on by exhaustion and overheating onstage which made me loose (sic) my vision and gave me symptoms of stroke in the left side of my body. So the decision was to end the show there and then.”