Dio is regarded as one of the greatest and most influential heavy metal artists of all time. He is known for popularizing the ""Metal Horns"" hand gesture in metal culture and his medieval-themed song lyrics. According to a version provided by the singer himself, the act derives directly from the classic Italian apotropaic gesture, which his grandmother usually did. Dio had a powerful, versatile vocal range and was capable of singing both hard rock and lighter ballads. He was awarded the ""Metal Guru Award"" by "Classic Rock Magazine" in 2006. He was also named the ""Best Metal singer"" at the "Revolver" Golden Gods Awards in 2010 and ranked as the genre's best vocalist in 2013 by music journalist Sacha Jenkins.