Xu Lin (徐琳)

https://www.nchrd.org/2018/10/xu-lin/ on Chinese Human Rights Defenders (中国人权捍卫者) says he was arrested in 2017 for Picking quarrels and provoking trouble (寻衅滋事罪), and released on September 2020 at the completion of his sentence. This dude was actually China, what a hero. https://chinachange.org/2018/07/28/guangdong-activist-xu-lin-tried-on-charges-of-stirring-up-trouble-for-writing-songs/ talks about his trial in 2018.

Possible official accounts:

Some songs: