But on stage, singing ability is only one part, and not the most important. All the factors are just there to serve the overall stage effect.,Although it was a bit awkward and sticky, the two people were still very professional in managing their expressions. They still struggled to keep their eyes open and smiled at the camera: "When you need music...",This thing I don't know what material it's made of, it's sticky on the body and a little itchy.。