 Artemis Gounaki is a vocal coach and has participated in various Popstars seasons in German, Greek and Swiss television such as on RTL II and ProSieben.Being a vocal-producer and arranger, Gounaki has worked with well-known German bands such as Bro'Sis, Preluders, Nu Pagadi, Overground, H-Blockx and Guano Apes).Many of the bands have already reached gold and platinum status in Germany.