if you performed live at an award show/a highly televised event and production didn't check that ur mic was working/on and didn't bother to turn on ur mic and fix their mistake haflway through ur performance
well the lead singer of metallica can relate cuz thats what happened in their performance during the live show at the grammys lol :) but good thing they posted the dress rehearsal so that we can see what it was supposed to be :) oh well :)