As someone once said 'without the roots we'd have no fruits'. It's a great legacy left to us by the likes of Robert Johnson, Muddy Waters, Otis Spann, Yank Rachell.
Interesting how it crossed the Atlantic in the 60's with the Marquee Club (good CD - Knights of the Blues Table). I jumped on the blues train at this time, electric blues with Clappo, Savoy Brown, Peter Green, Alan Bown. Then into prog rock and the rest is history!
I was also a member of my local folk club at this time!!
No problem with singing - just remember the roots and put that same feeling into it.
Incidentally, I think the impetus is back with America now.
Steve