...the godmother of Rock and Roll --- Sister Rosetta Tharpe (b. 1915, d. 1973):

Reminds me of B.B. King. It was said he could sing and he could play guitar but not at the same time.

And to think, she was recording a full 10yrs before King, and touring with Muddy in the 60s, and (as seen in a few other live performances) making Gibson SGs famous well before Tony Iommi or Angus Young of before Rock and Roll even had a name.