Complex sentence: She has also appeared as a musical guest on the Greek X Factor and performed on some of the greatest festivals in Europe on her Tour for "Love Supply" like the "Rock En Seine" in France and the Sopot International Song Festival in Poland.
Split into simpler sentences: She has also appeared as a musical guest on the Greek X Factor and performed on some of the greatest festivals in Europe. On her tour for "Love Supply", she performed festivals such as "Rock En Seine" in France and the Sopot International Song Festival in Poland.