No, this obviously has nothing to do with Metallica. Awa Ningyo Joruri, a puppet theatre company from the Tokushima Prefecture came to Vienna for two performances of traditional Japanese puppet theatre. During the perforamce, the puppet manipulators wear black robes ad hoods, in order not to distract the attention of the audience from the puppets. After the performace, they showed their puppets to the audience - unhooded. The images were taken at this after-performance presentation, at not very good light conditions.