Have you ever noticed that a group of men singing never sound bad. Consider this for a moment. Ten men singing individually. Each one of them has a voice that could only be loved by an alley cat or someone who is deaf.
However, if you place them together and have them all sing something happens. Suddenly their voices merge and the horrible shrieking is replaced by something different. It is replaced by something that sounds decent. It might not be great, but it is not so horrid that you feel the need to poke yourself in the eye with a sharp stick.
What do you think?