"Demonheart" is a symphonic power metal song by Italian songwriter Luca Turilli which appeared on his solo album Prophet of the Last Eclipse. It was released as a single shortly after the album's release.The single featured the full song, as well as an edit of one of the songs from Prophet of the Last Eclipse and an edit of one of the songs from King of the Nordic Twilight, two original songs, and a cover of the Helloween track "I'm Alive".