Alissa White-Gluz (/əˈliːsə ˈɡlʌz/; born 31 July 1985) is a Canadian singer, best known as the lead vocalist of the Swedish melodic death metal band Arch Enemy, and former lead vocalist and founding member of the Canadian metalcore band the Agonist. Her vocal style includes both growling and clean vocals (singing). Although primarily associated with melodic death metal and metalcore, she has appeared as a guest vocalist for power metal, symphonic metal and deathcore bands, notably Kamelot, Delain, Carnifex and Powerwolf, and has performed live with Nightwish and Tarja Turunen.