Irish singer CMAT has postponed her U.K. tour in order to have two painful wisdom teeth removed. The Euro-Country hitmaker, real name Ciara Mary-Alice Thompson, was due to kick off the U.K. leg of her sold-out tour at the Brixton Academy in London on Thursday. However, she announced on Instagram on Wednesday night that she had to postpone all of her October tour dates because she was in so much pain from the infected wisdom tooth that she "currently can't even open my mouth wide enough to laugh let alone sing". "I woke up today with a throbbing pain in my jaw and booked an emergency visit with my dentist," she explained alongside a selfie showing her swollen jaw. "He has booked me in for surgery to remove both lower wisdom teeth next week and given me antibiotics to help with the infection. I am told the recovery period for my surgery is two weeks to allow me to heal, with a following short period to allow me get back to full health." The 29-year-old apologised to her fans for causing "difficulties" and insisted that she was working on rescheduling the shows. "I am in so much pain right now that i can barely think straight enough to type. all i can do is lie in bed watching The Osbournes and dream about making it up to you all in the very near future. I love to sing so much :(," she added, before joking, "Rip my back two wisdom teeth you would have loved brixton academy (sic)." After London, CMAT was due to perform in Manchester, Leeds, Birmingham, Newcastle, Glasgow and Cardiff, among other stops, over the course of October. The rising star also lamented the fact that she wasn't able to perform at the Mercury Prize ceremony in Newcastle on 16 October "because of my stupid f**king teeth". She is nominated for the prestigious award for her album Euro-Country.