Lady Gaga says she's had hip surgery LADY Gaga says she's had surgery on her hip. The 26-year-old singer posted on her blog late on Wednesday that she had hip surgery and it "happened so fast." She cancelled her Born This Way Ball tour last week. Lady Gaga, whose real name is Stefani Germanotta, said that as she was wheeled to surgery, she reflected on her fans. She wrote: "Sometimes you are so brave that it terrifies me. I wonder how it's even possible. Lady Gaga cancelled more than 20 dates on the remainder of her tour, which began last April. She originally postponed four dates last week after experiencing difficulties during her concert in Montreal. She explained to fans on Twitter that she'd hurt herself while performing some time ago.