Stage Fright...

I really hate singing in front of people, especially a large group of people... Tomorrow I am singing in front of the whole stake. I was practically blackmailed when I was asked about a month ago. I am willing to play the piano, make jokes, speak, etc in front of people but singing is just a big NO!
I know I am going to screw up bad...
Oh man I have butterflies...
Gulp...Help... Please...