If you aren't familiar with the legendary Seasick Steve I would reccomend watching the documentary "Bringing It All Back Home" available on BBC Iplayer currently (BBC Four).
Basically the guy is a Blues Guitarist who was a hobo for quite a few years until he had the opportunity to make a record and then went global.
He plays with passion and honesty and in my opinion is a rare commodity in the music of today.
You don't particularly have to be into Blues to appreciate his rags to riches story but just to accept the poeticness of his triumph.
I will put a couple of links in the 1st post but also search on youtube. Hope you enjoy.