Pop Goes the Diesel (song)

The "Pop Goes the Diesel" is a song featured in Pop Goes the Diesel, as the trucks laugh and sing rudely at a grumpy Diesel who hauls some very dirty old trucks from a siding, and lurches forward when the brakes snaps and the coupling breaks. Before Diesel clears up the mess he hears the trucks making fun of him with this song:

UK Version
Trucks are waiting in the Yard; Tackling them with ease'll "Show the world what I can do," Gaily boasts the Diesel. In and out he creeps about, Like a big black weasel. When he pulls the wrong trucks out – Pop goes the Diesel!

US Version
Freight cars waiting in the Yard; Tackling them with ease'll "Show the world what I can do," Gaily boasts the Diesel. In and out he creeps about, Like a big black weasel. When he pulls the wrong cars out – Pop goes the Diesel!