XTRMST is an American straight edge hardcore punk band featuring Davey Havok and Jade Puget of AFI. XTRMST is Havok and Puget's second side project after their electronic project Blaqk Audio. They released their debut album XTRMST in 2014 on long-time friend Steve Aoki's Dim Mak Records. Havok and Puget later added Chris Sorenson (Saosin) on bass, Josh James (Stick to Your Guns, Evergreen Terrace, Casey Jones) on guitar, and Val Saucedo (Loma Prieta, Punch) on drums.