Covers:

1948:

Charles Norris Trio

1959:

Jimmy Witherspoon [als Time's Getting Tougher Than Tough voor Hi-Fi Jazz, Prestige & Fontana]

1960:

Jimmy Witherspoon-Gerry Mulligan-Ben Webster [idem voor Vogue]

1965:

Bluesology [idem; met Reg Dwight (Elton John)]

1967:

Them [idem]

1971:

Long John Baldry [idem]

1978:

Charlie Musselwhite [idem]

1998:

Charles Brown

2009:

Duke Robillard

2020:

Ben Sidran [als Time's Getting Tougher Than Tough]