Kostas Papakostopoulos was born in Athens. He is a graduate of the Political and International Studies Department of Panteion University. Classical guitar diploma from the class of Kostas Grigoreas and advanced theory studies (degrees in harmony, counterpoint, fugue). He teaches at the Philippos Nakas Conservatory and the Pythagorean Conservatory. As a musician he has collaborated with well-known Greek singers and composers in concert venues and musical stages. He has composed music for theater performances.