Performing as a musician in China, which kind of visa do I need for this?

Hello, I will be traveling to China in July. I am mainly visiting for tourism, but I have booked 3 gigs in Beijing and Guangzhou and plan to play as many as I can as I make my way through the country. I will be refusing payment. I just want to get a response from abroad to my work. Thanks! (I am a US citizen)