 The cat tries to eat the mouse with a violin, but ends up with the mouse playing the harp in his mouth using the cat's whiskers.The horse goes jazzy with the trumpet, and the two chicks do the jitterbug, and after the dance sequence, Old MacDonald asks the audience to sing along with the bouncing ball to "Old MacDonald Had a Farm".Each animal sung is sung in every verse, and the boys and girls alternate, then the animals form a conga line.