This is very entertaining!  It's an original "Manhattan Transfer" hit, with hip, 1940's style lyrics and a hot recorded accompaniment track.  It sounds almost like a mix of Chattanooga Choo-Choo and Boogie Woogie Bugle Boy, only it isn't!  This is high-energy fun from beginning to end, so be prepared - your group is going to want to sing it again and again!