Beijing. Andy's little black brother Xu Shijiang is a musician blogger on the Douyin app. He lives in Beijing and has 1.2 million fans. Douyin Andy Xiaohei sings in Beijing. Douyin is a music creative short video social software incubated by ByteDance. This software was launched on September 20, 2016. It is a short video community platform for all ages. Users can choose songs through this software and shoot musical works to form their own works.