Does the subject want to ask "What's the name of the 83-year-old fitness dancer in Mu Tong"? Gao Xianyu. According to the information of Tik Tok app, a fitness dancer in Mu Tong, formerly known as Gao Xianyu, is an online celebrity of the platform. She is 83 years old, but she has never slacked off her dance practice, which also inspires young people.