Nathan Lee. Love almost every soulful song of his. Best one: El Diabolo Y El Angel -- it's a song where he reveals that he is "rainbows and razorblades" and every other contradiction. I think he's Christian, because I've heard a few songs that seem to indicate it, but I can't find proof. His music is not dark, but satisfyingly reflective of the realness of life and humanity, and all the mistakes and wonders that come with it. Give him a listen.