>>81583332 (OP)Yes. It is called a private gig. Showmen, actors, comedians, performers, music bands, etc are all doing that. And they earn a shitload of money and connections doing so.
You have to sell yourself completely and be prepared to perform or sing what you're told to, by the drunk and high as fuck people with money. You can be hired to perform for pets as a band, and every cunt in the show business had an anecdote like that. You can be interrupted at any point or not even be invited on the stage, but you'll still get paid.
It is a whole parallel world where the truly rich enjoy live entertainment. Not like a powerful billionaire. But his wives and children and their friends. And even pets. There are lots of very rich people and then buy whatever they want. Nobody will reject an extra 100 grand for a 30 minutes long performance.