"Space Soap (La Soupe aux choux)" is a novelty single, released in 2005 in France.

It was produced by Mister Cosmic vs Fat Dog, from their first album Bon ça c'est fait!.

This instrumental is a remake of the theme of La Soupe aux choux, a 1981 French film directed by Jean Girault.

The single peaked at #3 in France on 9 November 2005 (with 19,397 sales that week), and reached this position after 19 weeks of presence.

After this unexpected success, the two DJs recorded a second single, "La Bonne du curé" (a remake of the Annie Cordy song), under the name 'Fat Dog "Puppy" & Mister Cosmic "Cosmic Cleaner".