Keith Richards has posted a video of him rehearsing “Little Red Rooster” for last month’s tribute to Hubert Sumlin, the legendary blues guitarist best known for playing lead guitar for Howlin’ Wolf. Sumlin,who died last December, was an inspiration to Richards and scores of rock guitarists. Joining Richards are James Cotton on harmonica and Steve Jordan on drums. The tribute show also featured appearances by Eric Clapton and Billy Gibbons of ZZ Top. Richards and Mick Jagger paid for Sumlin’s funeral in December.