Thodoris Economou performsGreek pianist Thodoris Economou performs during a concert at the Understage B ' of Alexandra Trianti Hall , at the Megaron Athens Concert Hall in Athens , Greece , 20 January 2018 ( issued 21 January 2018 ) . EPA / CHARIS AKRIVIADIS ▶ 기사 제보 및 문의 ▶ 기자 와 1 : 1 채팅    ▶ 평창동 계 올림픽 영상 공모전