Wedding Rehersal

Tonight I have a wedding rehersal to go to....yea....they asked me to sing so I guess I have to but I hate singing at weddings. They are alot like funerals...lol...I know that isn't nice to say but it is true. I don't mind to sing in church but weddings and funerals are so nerve racking. I guess because it is so formal it is just hard to sing at. It makes me nervous to sing at a wedding. I am singing a song that is very comfortable to sing which means it isn't too high where I will squeak when I get nervous but I am dreading it. I try to think in my mind that this is for them so sing your heart out but I still get nervous. Thanks for reading.....