The Soup song is a crimp sung by Vince Noir and Howard Moon in the Series 2 episode 'Fountain of Youth'
Vince and Howard have been buried up to their necks in the Desert of Nightmares. They begin to reminisce about the great times they had, such as the time they ate soup.
A tasty soup, soup
A spicy carrot and coriander
Crunchy friends in a liquid broth
I am gazpacho
I am a summer soup
Fighting in the dojo
Oriental prince in the land of soup