Hollywood Zen is Velvet Revolver and ex-Guns N' Roses drummer Matt Sorum's first solo release. It draws on his own experiences with touring, addictions, relationships and his hometown of Los Angeles. Co-produced with Lanny Cordola, and engineered and mixed by Kevin Smith, it features musical appearances by several of Matt's friends, most notably former Guns N' Roses and current Velvet Revolver bandmates Slash and Duff McKagan playing guitar and bass on various tracks. The recording of the album was completed while Velvet Revolver was putting together their current line up.