On the surface, I don't say who it is, just alluding to a person who is familiar to everyone, and his attitude is still a little arrogant and contemptuous. who is it? I won't tell you the source: "Korean women's group BLACKPINK's congratulatory message on the fifth anniversary of its debut: some people are born legends ... I won't tell you who it is ... some people called it the list of emperors when solo was first released ... I won't tell you who it is".