Well, gee...mics won't work without preamps and mics work in live shows.
So, the answer to your question is "yes".
But neither your question nor my answer will tell you what you actually want to know.
Do a little more research, find out what a preamp is and what it does and how its use might apply to a live show, then come back and ask the question again.
Except you probably won't need to...