For acting, yeah, you definitely want to block out the audience and focus solely on your objective. For music, well, I'm not sure how much you may or may not want to involve the audience. But something I found out last year was that, no matter what you're doing, you have to believe it. You know how animals can sense fear in you? So can your audience. If they don't think you're buying into what you're doing, then you'll lose them. So you just have to push your doubts out of your mind, and, no matter what happens, just have fun and stay committed to what you're doing.

I hope it goes great.