What a beautiful room to work with .
I see a supper club with small tables and lamps. Everything very art deco.
You need a marquee "His Name in Lights" that's what he is aspiring to do.
Search lights,at the entrance like at the old premiers. (perhaps smaller ones $$) . Don't forget the red carpet and the velvet ropes.
Your supper club needs a name. It could be a take off from the boys name or something relevant like "STudio 13" . Or an old name like, "the Starlight lounge" You get the idea. You're branding the event, come up with a logo and it goes on everything, Entrance Sign, Napkins, Table tents, hand bills Etc.. You can even have Souvenier T-shirts made up for the guests. I did this for my friends 40th B-day party, we called it studio 40. I even had a hand stamp made.
The stage has to have the big Microphone.
It would be Funny if you had a big hook that came out from the side of the stage from time to time teasing whomever is on stage, like they had with vaudeville acts.
You could also make an old movie out of pictures of the boy or old home videos. You can on your PC make it look like an old movie, black & white or Sepia tone with scratches and jiggly film. You could have it playing in the foyer.
Lighting is a huge element here. Maybe everything is done in red?
In which case you could call it the "red room"
These are just ideas off the top of my head.
I love this kind of stuff !!
Jennifer