I got this fromhttp://oldnfo.blogspot.com/
Awesome site and a good read
Sing it with the constant awareness that there are soldiers, sailors, airmen and Marines watching you from bases and outposts all over the world. Don’t make them cringe with your self-centered ego gratification.
Sing it as if you are standing before a row of 86-year-old WWII vets wearing their Purple Hearts, Silver Stars and flag pins on their cardigans and you want them to be proud of you for honoring them and the country they love — not because you want them to think you are a superstar musician. They could see that from the costumes, the makeup and the entourages.
Sing “The Star Spangled Banner” with the courtesy and humility that tells the audience that it is about America, not you.
If you can't or won't, then don't do it again