Photo from Facebook, but author is unknown...
Celebrating Mike Bloomfield's birthday: Killing Floor by The Electric Flag!
Composer, Lyricist: C. BURNETT
Vocal: Nick Gravenites
Guitar: Michael Bloomfield
Drums: Buddy Miles
Keyboards: Barry Goldberg
Baritone Saxophone, Keyboards: Herbie Rich
Bass: Harvey Brooks
Tenor Saxophone: Peter Strazza
Trumpet: Marcus Doubleday
Producer: John Court
And now the original, from the one and only Howlin' Wolf!!