Randall William Rhoads (December 6, 1956 – March 19, 1982) was an American guitarist. He was the co-founder and original guitarist of the heavy metal band Quiet Riot, and the guitarist and co-songwriter for Ozzy Osbourne's first two solo albums Blizzard of Ozz (1980) and Diary of a Madman (1981). Rhoads was inducted into the Rock and Roll Hall of Fame in 2021. Originally educated in classical guitar, Rhoads combined these early influences with heavy metal, helping form a subgenre later known as neoclassical metal. With Quiet Riot, he adopted a black-and-white polka-dot theme which became an emblem for the group. He reached his peak as the guitarist for Ozzy Osbourne's solo career, performing on tracks including 'Crazy Train' and 'Mr. Crowley' on the Blizzard of Ozz album. 'Crazy Train' features one of the most well-known heavy metal guitar riffs. (Source: Wikipedia.org, CC BY-SA)