Metallica
is a legendary American heavy/thrash metal band formed in 1981 by James Hetfield and Lars Ulrich. Known for their fast tempos, aggressive musicianship, and groundbreaking instrumentals, they are one of the "big four" thrash metal pioneers alongside Megadeth, Anthrax, and Slayer. Based in San Francisco, Metallica's influence extends across generations, solidifying their place as one of metal's most iconic acts.