I have had the same problem - usually singing at a family event or for friends... I am lucky that most of my singing is done "in charactor" at faire or other events - because my charactors do NOT get as nervous as I do! (I think it has to do with the double layering - I am concentrating on "being" someone else, so don't have time or energy to worry about the singing) The other thing I have found is that "symptoms" that seem glaring and obvious to the performer sometimes are not even noticable to the audience. I remember one song that through the entire thing I kept thinking "keep the knees locked" because I was shaking so hard -and I thought my voice was wavering all over the place.. but several audience members told me they could not percieve either the shaking or the tremble...

MMario