Question: Which American heavy metal supergroup formed in 1991 was formed in the same city as the band Arson Anthem in 2006?
Sentence (from "Arson Anthem"): The lineup comprises singer Mike Williams of Eyehategod, guitarist Phil Anselmo (best known as the vocalist for Pantera, Down and Superjoint Ritual), country musician, punk rocker and Assjack frontman Hank Williams III on drums, and bassist Collin Yeo.
Relevant evidence: No