If an amateur becomes popular overnight, how long can ta become popular?

I think it depends to a certain extent on the packaging efforts of his company, as well as how he should manage his own contacts and what kind of talents he has. For example, in singing and acting, what can attract people's attention now? This is the most important point. If possible, it can really be made into that kind of emperor superstar, one is red and the other is twenty or thirty years. If there is no such thinking, it may be two or three months or six months.