Keith RichardsWhile the Stones ponder how to light the cake for their 50 years in show biz, check out this clip of Keith Richards rehearsing the Howlin' Wolf classic "Little Red Rooster" for the recent concert honoring Wolf's main man, Hubert Sumlin.

The concert also featured some killer work by our own Gary Clark, Jr.  James Cotton, who accompanied Wolf on his first sessions with Sam Phillips at Sun Records in Memphis in the early '50s, is on harp.