+"Dio" refers primarily to [Ronnie James Dio](/wiki/ronnie_james_dio) (1942–2010), an iconic American [vocalist](/wiki/vocalist) renowned for his powerful range and fantasy-inspired lyrics. He fronted influential bands like Rainbow and Black Sabbath before forming his own eponymous group, Dio, which further shaped the landscape of heavy metal. His legacy endures through a vast discography and the enduring "sign of the horns" gesture.
+## See also
+- [Black Sabbath](/wiki/black_sabbath)
+- [Rainbow](/wiki/rainbow)
+- [Heavy Metal](/wiki/heavy_metal)
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