About Demo Demon Demo Demon is a Music artist, Engineer from Pittsburgh PA. Starting music in 2009 the self taught artist would go on to make four albums, 4 EP’s & two mixtapes. He is also a youtuber who does gaming & Tech videos. About the song, Diseased Diseased (Feat. Grewsum) is a song about anxiety along with the mental and physical pain that comes with it. The fast lyrics matching the speeding thoughts and frantic voice going along with the panic.
