Lyrics to mary had a little lamb, the blues version.?

This was a song I learned in grade school honor choir. This is all I can remember. Mary had a little lamb, its fleece was black as soot, and every where that Mary went its sooty foot it put. Oh, baa baa mary, sing baa baa to your blues. Get that lamb back home girl and get yourself to school. That is all I can remember, please help!