Fat City is the debut album on the Sons of Champlin, formerly known as the Opposite Six.

[1] The record is more concise in structure and effort than their later, looser psychedelic material that they released in the late 1960s.

After re-investing earnings from a Kingston trio's success into a properties and music-related corporations in the San Francisco Bay Area, one of which was Trident Productions, Frank Werber signed Sons of Champlin in 1966.

Werber sent the band into Trident's own Columbus Recorders with producer Randy Steirling in late 1966 to work on a full album via a lease deal with MGM Verve.

Due to a variety of difficulties, it never happened and the Sons unhappily left Trident in June 1967.