Forever Warriors Forever United is the thirteenth studio album by the German heavy metal singer Doro, released on August 17, 2018 through Nuclear Blast Records. This is Doro's first double album, released separately as split albums, as well as a double package. The album is dedicated to Lemmy Kilmister. The first single "All For Metal" contains several guest vocalists such as Chuck Billy, Jeff Waters, Johan Hegg, Mille Petrozza, and Sabaton. "If I Can't Have You, No One Will", which has a duet with Amon Amarth bellower Johan Hegg, was released as the 2nd Single. The third and fourth singles were "Lift Me Up" and "It Cuts So Deep" respectfully. Five music videos were produced in promotion for the record's release: "All for Metal", "It Cuts So Deep", "If I Can Not Have – No One Will", "Freunde Furs Leben" and "Love's Gone to Hell".