Listen to Σκληρόκαρδη online. Σκληρόκαρδη is an English language song and is sung by Νταίζη Σταυροπούλου Κ' Τσιτσάνης. Σκληρόκαρδη, from the album Ancient Greek Music, was released in the year 2008. The duration of the song is 3:12. Download English songs online from JioSaavn.