Sinéad O'Connor has cancelled the rest of her summer concerts because she is suffering from exhaustion. The 48-year-old, who recently became a grandmother, was due to play a Galway Arts Festival gig this coming Thursday. The concert will go ahead with John Grant, who was also billed, performing and joining him will be the Sharon Shannon Big Band. Sinéad's agent has released a statement on her behalf: “Sinéad O'Connor apologises profusely to her fans but she cannot travel this summer anymore. She is suffering from exhaustion due to an existing not resolved medical situation and she has been advised by the doctor to stop any activity and rest. Because of this she is completely unable to travel and to perform".

With regret, due to illness @SineadOconnorHQ has cancelled her Festival Big Top show this coming Thursday 23 July: http://t.co/0uLmOQwYGL

— Galway Int Arts Fest (@GalwayIntArts) July 21, 2015

Full refunds will be offered to ticket holders who do not wish to attend Thursday's show and information on how to claim your refund can be found here. Those who wish to attend the gig will receive a complimentary drinks voucher for the Festival Big Top Bar, in addition to a €10 Festival Voucher redeemable against the Festival Big Top 2016 Programme.