Lady Gaga cancelled her third and final show in Montreal last night after developing a respiratory infection 💔 The singer announced on Instagram last night that she was deeply disappointed to have to let fans down but she was unable to perform. She had performed in the city Thursday and Friday night, calling those performances "magical and meaningful." She did not say if the final Montreal show will be rescheduled. Gaga is set to perform two more shows in Minneapolis before concluding the Mayhem Ball Tour at Madison Square Gardens April 13th. Did you see Lady Gaga on tour? (📷: Getty Images) #LadyGaga #Mayhem #MayhemBall #Montreal