If you like Johnny Cash, check this 15 year old kid out. He's been busking at the Pike St. Market and was on Good Morning America. His voice is a bit different than Johnny's but his song phrasing is dead on:

http://www.komotv.com/home/video/11925891.html?vid
_________________________
"I didn't care what she didn't 'low--I would boogie-woogie anyhow" John Lee Hooker