I worked on my voice for Sweet Dreams but only to match my speaking voice to Patsy's actual singing voice. That was my way into that character.
I put on the Hank Williams and the Patsy Cline and the Rosemary Clooney on vinyl - I'm not trying to be some cool indie-rock person I just love the way it sounds - and throw on a T-shirt and jeans. In Texas we practically come out of the womb in jeans.
Humor is such a wonderful thing helping you realize what a fool you are but how beautiful that is at the same time.