Ouled EL Bahdja, is a campaign among fans of USM Alger to restore the matchday atmosphere within Virage specifically, and Omar Hamadi Stadium more generally. It was established by a group of Algiers fans from Casbah in the nineties. Their songs are chanted by all the demonstrators in the four corners of the country and even elsewhere in the world. They refuse any public appearance and any media interview. They wish to remain anonymous, as they only sing for their club USM Alger.