I've been a Ronnie James Dio fan for over twenty years. My older brother got me into D&D and he also introduced me to Dio.
Dio's music is hard rock/heavy metal. He sings about dragons, 1984 like societies, wizards, monsters, and other topics near and dear to gamers.
Master of the Moon is his latest release. The music is powerful, Dio sounds as good as ever (he has opera training which has kept his voice strong since he started in the 1950s!), and the lyrics conjure up all kinds of interesting scenes and settings.