Lady Gaga has been forced to cancel the rest of her Born This Way Ball tour due to injury. Gaga cancelled a few dates earlier in the week before the news broke late Wednesday that she would be undergoing surgery on her hip, thus requiring the cancellation of the rest of her tour. Lady Gaga was set to play D.C. next week at the Verizon Center. Ticket holders can get full refunds for their tickets. Gaga has a tear in part of her right hip that requires immediate repair and significant downtime after the procedure. No word on when she might be able to start touring again.