Matthías Tryggvi Haraldsson (born February 17, 1994) is a former vocalist of the Icelandic techno, industrial and punk rock band Hatari and is the cousin of the lead vocalist of the group, Klemens. Hatari represented Iceland in the Eurovision Song Contest 2019 with their song "Hatrið mun sigra", finishing 10th in the final. Outside of Hatari, Matthías is a playwright; he graduated from the Iceland University of the Arts with a one-man play entitled Griðastaður (transl. Sanctuary), which was later shown at the Tjarnarbíó theatre in Reykjavík.He also acted as a news reporter for Icelandic broadcaster RÚV. He announced his departure from the group in March 2023.