She announced on her Instagram that she will cancel the third and final performance at the Bell Centre in Montreal due to a respiratory infection. "I'm sorry to share that I cannot perform tonight and must cancel the concert. I've been battling a respiratory infection for the past few days and doing everything I can to rest and recover, but my condition has worsened. My doctor advised me not to perform today, and I don't think I could deliver the quality show you deserve. I know how disappointing this is, and I couldn't feel worse about letting you down," Gaga stated. She also extended an apology to the audience who had planned to attend and support her. "Being in Montreal and performing for you on Thursday and Friday was magical and meaningful. To everyone coming tonight, I want you to know my heart is broken and I'm so sorry," she conveyed. Gaga previously held concerts in Montreal on Thursday and Friday as part of her Mayhem Ball tour. Following these shows, three more concerts are scheduled, including two in Saint Paul, Minnesota, and one at Madison Square Garden in New York. In September, the tour was expanded with new dates and cities for 2026. Gaga's new concert program began in February in Glendale, Arizona, with stops in Boston, Washington, and Montreal, among other North American cities. The singer had previously rescheduled several dates on this year's tour, including a concert at the Kaseya Centre in Miami on March 13, after having to cancel it on September 3 due to vocal issues. Gaga announced the Mayhem Ball in March 2025, noting that she hadn't planned to extend the original series of concerts in Singapore, but the response to the album Mayhem inspired her to continue. "This time we chose arenas to give us the chance to control the concert details in a way you simply can't in stadiums, and I honestly can't wait," she said earlier.