Decadence 2025 Arizona. Learn more about decadence arizona 2025 in phoenix on december 30 & 31, 2025 presented by relentless beats.  — decadence arizona returned to the phoenix raceway for its 9th year this past weekend, making it the best way to ring in 2025.

 — decadence colorado’s sister festival, decadence arizona, was launched in 2014 and is helmed by statewide promoter relentless beats. The new year’s eve festival from the minds of relentless beats and global dance will host.