D. O. & Baekhyun: Who'a voice captures the essence of SOUL/R&B to the T?

Who is the most soulful singer and embodies that R&B/soul sound vocally??? This video is me giving my personal opinion on this topic. I don't think there is a right or wrong answer here, so let's just have some fun with this one. Who do you feel is the most soulful singer, and why?