Mark Robert Boals is an American heavy metal vocalist, best known for his work with Yngwie Malmsteen. As a young child he learned to play the piano and bass guitar. Although Boals has never had any vocal lessons or training, as a teenager he gained experience as a vocalist in local groups. Boals is the founder and vocalist for the band Ring of Fire and serves as the vocalist of Danish neoclassical/progressive metal act Royal Hunt and the US progressive band Seven the Hardway. As of 2014, he is also the bassist for Dokken.