How to get famous with base game careers?

I just had my potential star start singing in public. Within 30 minutes (Real Time) of game play, he gained a star, Notable Newcomer. I just kept at it until he eventually gained a second star. (I know nothing of a drone, streaming or anything else!) I do have him periodically upload something to his Simstagram account and he has close to 200 followers, to date. Since I'm also curious to know about the acting career, I told myself once he reaches his second star, I would put him in that career. He started at level 3, thanks to his second star, no doubt. And he just had his first successful gig. He got a promotion. Would that he could just sing for a living, but at least with this EP, I don't have to rely on 3 extra mods to get him there. I thought about placing him in the Entertainment career, but although he's very proficient at both the guitar and the piano, playing an instrument isn't all that he's about. He's got a level 10 singing skill. Why waste it? I shall follow along and see where this takes him. I'm just enjoying this EP.