1. To highlight his personal style and stage image. Andy Lau has been wearing sunglasses since his early debut, which has become his representative image and symbol. This move can not only make him more mysterious, but also reflect his unique style as a pop singer, and also enhance his shock on the stage.

2. Andy Lau's performance at the concert was wonderful. With his voice and music, sunglasses can also enhance the stage effect, making it easier for him to have a * * * sound with the audience and shaping a better performance effect.