Awesome! Thanks!
Other than those who are celebrities due to being a ruler, I think this has always been the case due to the nature of entertaining. Entertainers, even in the days before radio, TV, and the internet, have the advantage that their professional activities are not limited to interacting with one person at a time. A doctor can only treat one patient at a time. A plumber can only unclog one toilet at a time. An accountant can only do one persons taxes at a time, and so on. Entertainers, however, could entertain live crowds in the tens of thousands even in the old days, and can now reach billions thanks to the internet.
Furthermore, entertainers are often portraying characters that audiences feel strongly about, in exciting and memorable situations. Even if your plumber is absolutely the greatest artist with a pipe wrench who ever lived, you are not likely to feel as captivated and emotionally involved by watching them tinker with your plumbing as you are by watching Tosca stab Scarpia, or whatever.
Probably also athletes, in addition to actors/singers. Though you might be considering them a sort of entertainer. And of course, the sport(s) the athletes are competing in would vary across time and space.
Olympic/Panhellenic athletes, certainly. I mean, you don’t raise statues to nobodies. Well, I guess the nobodies could have raised the statues with their own money, but Pausanias certainly seemed to know who they were, and all the hot gossip about them. And several known sculptors apparently specialized in athlete portrait statues, so it was a thing.