Here's a link to the lyrics... Everyday Companion Online - Lyrics - She Caught The Katy It was written by Taj Mahal, and was indeed used in the movie "The Blues Brothers".
Just for fun, I've plugged in my copy. And that's our movie for tonight. In about half an hour, I'll be listening to that song. Boxcab E50
My all-time favorite movie! The cop car chase scenes are the best! "This is car number... What number are we?" "Five-five." "This car fifty-five; we're in a truck!" A classic!