Nineteen-year-old Miss Bloomington, MN, Stephanie Nilson sang the National Anthem at a Twins-Orioles game years ago. She experienced the usual ballpark delayed feedback of her voice from the public address system. She got as far as, “Oh, say does that star spangled banner yet wave?” and blanked out. “Aw Nuts!” she said into the microphone. The crowd burst into laughter, but it was with her not at her.