Velko has seen Sabaton 9 times.

Sabaton is a Swedish power metal band from Falun. The band's main lyrical themes are based on war, historical battles, and acts of heroism—the name is a reference to a sabaton, knight's foot armor. The armor and battle theme is heard in the albums Primo Victoria, Attero Dominatus, The Art of War, Coat of Arms, Carolus Rex, Heroes, The Last Stand, and The Great War in which most of the songs contain these motifs. Their latest album, The Great War, was released on 19 July 2019, with the songs all being based on World War I.