Affected by the epidemic, a large number of offline concerts by singers have been cancelled or postponed, and many singers have turned to live online concerts: Cui Jian, Luo Dayou, Stefanie Sun, Mayday, Backstreet Boys, Xicheng Boys… The list goes on, but in fact online singing There will be many shortcomings, such as the picture is too small, the stage is simple, the picture quality is poor, the sound is tarnished, etc., the look and feel is very bad. And the performers are actually quite disturbing, there is no audience at the scene, they can only sing to the camera….