 As Keillor launches into the main portion of the commercial's song, a noisy and primitive-looking diesel engine flies into view.The inhabitants of the cartoon world negatively react to the engine's intrusion, with flowers coughing and closing up, a frog abandoning its lily leaf and chickens squawking.Keillor's singing is joined by a group whistling the tune as a further flock of flying diesel engines join the original and continue across the landscape, gradually being picked off by a variety of cartoon animals and by the landscape itself.