Kostis Maraveyas or Kostis Maravegias (Greek: Κωστής Μαραβέγιας), also known by his stage name Maraveyas ilegál or just Maraveyas, is a Greek singer-songwriter, composer, performer, director, TV presenter and writer. He plays the accordion, piano, guitar, hammond, farfisa and he sings in Greek, English, Spanish and Italian. Although he began his musical career in the underground and alternative music scene of Italy and Greece, as of 2015 Maraveyas has reached wider audiences and is considered as a well known songwriter-performer in Greece. From 2017 to 2019 he has been one of the four judges of the TV show The Voice of Greece, winning all three seasons with his team.