Lady Gaga has cancelled her third of three nights of her Mayhem Ball tour at Montreal's Bell Centre due to an ongoing respiratory infection. She posted a message on her social media accounts apologizing for the cancellation, stating that she felt "heartbroken" about letting fans down and was unable to perform due to the illness. The announcement came after she performed two concerts last week as part of her ongoing tour, which is set to conclude on April 13 with a hometown show at New York's Madison Square Garden.