On Saturday 26th March, Westfalenhallen in Dortmund, Germany will be playing host to past Eurovision winners in this spectacular concert. The following artists have so far been confirmed: Ruslana (Ukraine 2004) Sandra Kim (Belgium 1986) Johnny Logan (Ireland 1980, 1987) Charlotte Nilsson (Sweden 1999) Nicole (Germany 1982) The Herry’s (Sweden 1984) Loreen (Sweden 2012) This concert is a real must …