It's hard to determine if Zip Code Rapists are an offshoot project of Zip Code Revue, vice versa, or if each band released an album or two (for Amarillo), then decided to call it quits. Whatever the case, Zip Code Revue released the roots rock album Abundance in 1994, led by singer/songwriter/guitarist John Singer. He was supported by a set backing band (something that Zip Code Rapists would later shun). The only thing constantly reliable about the Zip Code bands is the ongoing presence of Singer. Their sound was similar to other Amarillo classic rock-style recording artists like U.S. Saucer and Dieselhed, two bands that Zip Code Revue/Rapists would tour with.