O. is a festival for visitors who are curious. O. stands for opera and opening up the genre. O. thinks outside the box. O. is Opera. Music. Theatre. O. has an ongoing focus on adventure, talented makers, and crosslinks to numerous genres: from performances to electropop and from tear-jerkers to street culture. O. is open-minded. O. excites, moves, innovates, connects. O. is diverse as Rotterdam itself. Allow yourself to be surprised. O. Yeah!