Great dance song that I cannot find on any CD in the music store

While watching the film ASTERIX IN AMERICA(1994),I heard a superb dance song on the soundtrack by Right Said Fred titled 'Dance,Dance,Dance(Under the moon).I read the closing credits to verify the name of the artist.I cannot find this song on any Right Said Fred CD or any other compilation CD in any music store.I wish this song was easily available in music stores.