I really like Taj Mahal's cover version of Sleepy John Estes' song Milk Cow Blues which appears on Taj Mahal's, 1968 eponymous album, Taj Mahal, titled Leaving Trunk.
The video clip below, I believe, is from the The Rolling Stones Rock and Roll Circus. It is very cool because it also features Jesse Ed Davis, Ry Cooder et al kicking ass and taking names.
WAKE UP MAMA,
I GOT SOMETHIN TO TELL YOU
YOU KNOW I'M A MAN
WHO LOVE TO SING THE BLUES
Here's the lineup according to the liner notes: Jessie Edwin Davies,(sp) lead guitar; Ryland P. Cooder, rhythm guitar; James Thomas, bass; Sanford Konikoff, drums; Taj Mahal, harp
Leaving Trunk mp3 by Taj Mahal
Milk Cow Blues mp3 by Sleepy John Estes.