"Unbelievable" is their best known single. The song includes samples of US comedian Andrew Dice Clay throughout the track.
The song "Lies" originally contained a sample of the voice of John Lennon's assassin, Mark David Chapman, reciting the lyrics to Lennon's "Watching the Wheels." There was controversy over this from Lennon's widow, Yoko Ono, who objected to this sample. As a result, all pressings of Schubert Dip since then have omitted the sample of Chapman's voice.
The song "Girl of an Age" contains a sample of the character Ernie from Sesame Street speaking to his friend Bert.