Ozzy refers most commonly to Ozzy Osbourne, an English singer and songwriter from Birmingham, England, best known as the lead vocalist of the pioneering heavy metal band Black Sabbath and later as a solo artist. His music spans heavy metal and hard rock, with a career beginning in the late 1960s and extending across subsequent decades. Osbourne's work with Black Sabbath helped define the sound of early heavy metal through dark, riff-driven compositions, while his solo recordings combined theatrical vocal delivery with melodic hooks and heavy instrumentation. He is also known for his flamboyant stage presence and long-standing influence on metal and rock musicians.