Danish rock band Volbeat left the stage at Belfast's Ulster Hall on Thursday night during their first song.
A spokesperson subsequently announced that the performance had been cancelled. In a statement posted on social media, Volbeat said, "our most heartfelt apologies for having to cancel tonight's show in Belfast".
"As many of you know, Michael (singer and guitarist Michael Poulson) has been having some throat issues and we ran into multiple technical issues on stage that prevented the band from being able to hear each other play."
"While he has mostly recovered his voice at this point, it was decided that had he continued to play the show this way he would have risked blowing out his voice again and having to cancel even more shows.
"We're gutted that we weren't able to perform for you tonight, but we will be back to reschedule the show as soon as we possibly can."
The Ulster Hall confirmed that all patrons who booked online would be automatically issued a full refund, as reported by Belfast Telegraph. All other ticket-holders were advised to contact their original point of purchase to secure a refund.