May 29, 1992, at Cell 63 featured performances by Psychosoul, Social Justice, Primitive Tribes (Flagstaff, Arizona), Intoxicated Maneuvers, and Refrigerated Nurses (the self proclaimed first punk rock band in Northern Arizona). The flyer also listed the venue's hotline number, continuing its tradition of promoting shows and booking bands through grassroots efforts. This iconic poster features photos cut out from the Granada Hills Charter High School yearbook, including Nathan's high school photo, where he is pictured with his classic punk rock hair and cross necklace, placed under the Refrigerated Nurses text next to Psychosoul. Also featured are friends (and enemies) of Cell 63, including those who helped the venue operate, as well as show attendees, further emphasizing the close-knit community that helped shape the venue’s identity.

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Social Justice formed in late 1986 and quickly gained notoriety in the San Fernando Valley’s punk and hardcore scene. Following the recording of their first demos, they began performing with local bands like Positive Approach, Misguided, and IDK, and shared stages with major acts such as Bad Religion, NoFx, Pennywise, and Inside Out at some of LA’s top venues. In 1989, after a show with Bad Religion, they signed with Mystic Records and recorded their debut LP Unity Is Strength at West Beach Studios, engineered by Brett Gurewitz of Bad Religion. The album was released on Safe Side (Mystic) Records that same year, but after some lineup changes and shifts in musical direction, the band eventually evolved into what became known as Downset—a group that would go on to make a significant mark blending hardcore punk with hip-hop influences as they toured the world.