This shirt was given out by the radio station HOT 97.7 in the California bay area when Prince came and performed at Shoreline Amphitheater.  One of my parents worked in management for Bill Graham Presents (BGP) all over the Bay Area until they retired in the late 90's.  After retirement my parents moved to northern California where this shirt, and many others, were stored away in a box.  While helping them clean up recently I found a treasure trove of shirts from their career.   This shirt comes from my parents private collection.  

October 10, 1997 — Jam Of The Year Tour

Shoreline Amphitheater: This show was The Artist Formerly Known As Prince’s first outdoor performance in the Bay Area and his first time playing solo piano sets. Backed by The New Power Generation, he played 34 songs at the October show, most of them culled from the two albums he released in 1996,  Emancipation and Chaos and Disorder (not including the soundtrack that he wrote for the Spike Lee film Girl 6). The year before, Prince had left his label at Warner Bros. and married the dancer Mayte Garcia, who was 15 years his junior.