Scottish punk rock legends The Exploited packed The Observatory in Santa Ana, CA, on Thursday night, February 27, along with SoCal natives and fellow punk rock veterans D.I. and Total Chaos for a night of old-school hardcore punk rock debauchery.

Celebrating their 35th anniversary as a band, Total Chaos brought exactly that to the stage—chaos. With their home base just 40 minutes inland in Pomona, The Observatory was packed, and fans wasted no time conjuring up circle pits and crowd surfing. Many tried to get onstage, and vocalist Rob Chaos did his best to encourage the crowd to get rowdy and unruly.

Casey Royer of D.I. is an Orange County punk rock legend, with roots in Adolescents and Social Distortion dating back to 1979. With D.I. being a huge inspiration for many OC bands, it’s always an event when they play in SoCal, and this night was no exception. Royer, along with Clinton Calton and Trevor Lucca on guitars, Eddie Tatar on bass, and Joey Tatar on drums, picked up right where Total Chaos left off, whipping the crowd into an even greater punk rock frenzy.

Joining D.I. onstage for the song "Hang Ten in East Berlin" was another punk rock legend, Ross Lomas from English street punk pioneers GBH. Two hours into the night, security guards were working non-stop catching crowd surfers and trying to keep fans off the stage—and the most extreme part of the night was just beginning.

Total Chaos and D.I. surely ignited The Observatory, but the speed and aggression of the music were about to reach a whole new level. Wattie Buchan, with his iconic red mohawk, took the stage with the rest of The Exploited: Irish Bob on bass, Steve Campbell on guitars, and none other than Garry “G-Man” Sullivan from The Cro-Mags on drums. From the first notes of "Let’s Start a War" to the final sound of "Was It Me"—and all 22 songs in between—The Exploited had Santa Ana in a blazing frenzy of hostility. Buchan has not lost a step over the years and remains the same angst-driven, politics-hating, anti-religious punk who carved a path of destruction and respect all the way back in 1979 to today.

Catch The Exploited on tour until March 15, ending at the Punk Invasion at The Belasco Theater in Los Angeles.