I can't turn you loose

Good evening ladies and gentlemen and welcome. Y'know, so much of the music we hear today is all pre-programmed electronic disco, we never get a chance to hear master blues men practicing their craft anymore. By the year 2006, the music known today as the blues will exist only in the classical records department of your local library, so tonight ladies and gentlemen, while we still can, let us welcome from Rock Island Illinois, the blues men of Joliet Jake, and Elwood Blues, The Blues Brothers!