I never pretended to have a great voice. It works and I can carry a tune. If you have a good song, that's about all that's required.
I think the best exercise that I do is singing for an hour-and-a-half out on the stage, because, yes, I use the lung, the biggest muscle in your body.
I was influenced a lot by those around me - there was a lot of singing that went on in the cotton fields.
