Leading a choir has to be one of the most fascinating activities there is. I am continually amazed to discover that, with competent guidance, basically anyone is capable, even without any previous musical training, of making music with others at a high level. It doesn't matter if you're singing "Am Brunnen vor dem Tore", "Kum ba ya", "Thank you for the music" or even "Highway to Hell." What matters is that you have fun and give it your best shot.