http://www.theverge.com/2013/2/27/396440...c#comments
That's a Great article about auto-tune
It is a long one with a number of videos to watch embedded in it.
There is one pretty far towards the end with the African American Actor who was on Star Trek Deep space nine (or new gen or something) with the blind sight giving sunglasses on.
He hosts lots of science shows lately. I have a feeling that he had some hard science degree before he went into acting but either way , he's always enthused and entertaining.
He sings this song (cutting from his kitchen to the shower, to his car) as terribly as I sing in each of those three. He misses notes entirely (like wrong key) but goes into a studio with the inventor of auto tune and he and an assistant work it out to make him sound ok.
The whole article is interesting.. that example with the actor is funny and perhaps builds walter-mitty like dreams in people like me who doesn't have too great of an ear, especially hearing myself while singing.