Entertainer is no more?

I just checked my game Entertainer Career is there. It's underneath Engineer. If you can't find it, may I suggest you remove your Mods folder. I once had a mod that added more events, which effectively hid the Meet & Greet event that comes with Get Famous. It's worth a try.  As for your Singer Sim, there is no provision for one. I use the Road to Fame mod v0.5D. Although there is another mod(s) out there, too.