an Entity references as follows:
Christian Olde Wolbers (born 5 August 1972) is a Belgian musician, songwriter, and producer who is the bassist and backing vocalist of the heavy metal band Powerflo. He is the former bassist, guitarist and backing vocalist of the heavy metal band Fear Factory, and the hardcore punk/crossover thrash band Beowülf. He is also current the bass player in the thrash metal band Vio-lence.