Ostkreutz is a band from Berlin (eastern Germany) and consists of their three members Maximum(singer) and Medium(laptops) and Optimum(drummer).
These are videos from concerts where Ostkreutz played, so they may be of other bands that played the concert as well.
Rock am Ring 2006 Jun 2 - 4, 2006 Nürburg, Rheinland-Pfalz, Germany Embedded by Concert Archives 3
