Lady Gaga: The MAYHEM Ball LADY GAGA: THE MAYHEM BALL – LONDON 2025  – Reserve your tickets now! London, are you ready for mayhem? Lady Gaga is bringing The MAYHEM Ball to The O2 Arena on Thursday, October 2, 2025, at 6:30 PM, and it's going to be an unforgettable night.​ This is your chance to […]