David Arquette mourns the loss of his friend and Crazy Town vocalist, Shifty Shellshock, who passed away at age 49 in his LA residence. Arquette shared heartfelt memories of their friendship on Instagram, describing Shellshock as an incredible man with a huge heart, with whom he shared similar struggles. The late musician battled addiction for years, ultimately passing away from a deadly combination of prescription and street drugs. Arquette, who has also dealt with addiction issues, emphasized the importance of honesty and finding what works best for oneself in recovery. Shellshock's legacy includes his band Crazy Town's hit single "Butterfly", reaching No. 1 on the US Billboard Hot 100. Despite his struggles, Shellshock's memory lives on through his music and three children.