Dio
Dio was an American heavy metal band. It was founded by Ronnie James Dio in 1983 after he left Black Sabbath. He left the band because of an argument with Tony Iommi and Geezer Butler over the mixing of Live Evil and took Vinny Appice with him. He also left Sabbath because he wanted to make his own music.   He took Vinny Appice with him. Appice stayed in the band until 1988. He and Ronnie joined Sabbath again in 1992. They toured with Sabbath as well. They both left the band again, and made music until 1996.