Well, this past Friday I sang through it... bad move. My partner ended up having to do the last third of the night by himself as I became worse and worse... sore throat, cough, voice got raspier and raspier. Now today, swelling to my throat, so off to the doctor tomorrow (heavy duty winter blizzard here today, all clinics are closed and I am not heading to the emergency room at the hospital).

In short, try to cancel it or find a replacement. I have heard so many times people say not to sing through it, but being the horse's ass that I am, I may have done some damage... I'll keep you updated on what the local quack sez about the throat of an ass....

Brian