Bessie Smith, a personal favorite (sorry about the static in the first vid):
The Pony Party is an Open Thread. Please do not REC the Party!
Billie Holiday & Satchmo:
Katie Webster & Clarence “Gatemouth” Brown:
Sonny Boy Williamson II:
And now, some Bluegrass.
Earl Scruggs with Steve Martin:
Lester Flatt & Nashville Grass: