'Poor Boy / London Session' - Howlin' Wolf

In 1971, Chess Records released an album recorded the year prior, called 'The London Howlin' Wolf Sessions'. This album featured Eric Clapton, Steve Winwood, Bill Wyman and Charlie Watts (the latter two from The Rolling Stones) alongside Howlin' Wolf and his guitarist Hubert Sumlin.

The result was a blues with a rock twist, where Wolf would sing traditional blues with Sumlin on Chicago guitar embellishes over British blues rock grooves.

Here's a song from that album, called 'Poor Boy', a blues standard: