Γιώργος Κουτρουμάνος has 6 Blind Guardian concerts.

Blind Guardian is a German power metal band formed in 1984 in Krefeld, West Germany. They are often credited as one of the seminal and most influential bands in the power metal and speed metal subgenres. Nine musicians have been a part of the band's lineup in its history, which currently consists of singer Hansi Kürsch, guitarists André Olbrich and Marcus Siepen, and, since 2005, drummer Frederik Ehmke.