Lady Gaga is "doing great" after undergoing hip surgery. The 'Bad Romance' hitmaker was forced to cancel her US 'Born This Way Ball' tour after sustaining a labral tear to her right hip. but her manager Vincent Herbert says she is on the mend. He is quoted by the New York Daily News newspaper as saying: "She's doing wonderful, doing great." According to Vincent, Gaga is finishing her "very, very refreshing" her album 'ARTPOP', which continues ti "push the envelope". He added: "She is ready to get back to work. "I can't wait for the world to hear her new music and see her come back healthy, strong and better than ever." And though there is no date scheduled for Gaga's return to the stage, her manager promised her daring dance routines will still be the same as before. He said: "Exactly...They'll be there." He believes the injury was a result of the 26-year-old star's tough working regime. He said: "She works really hard and things happen." The 'Born This Way' star has been using a 24-carat gold plated wheelchair to get around following her recent surgery.