A subgenre of metal that erupted in the early 90s after legendary thrash metal band Anthrax did a duet with rappers Public Enemy on their song
Bring The Noize. plenty of guys liked this so as a result, many bands like Limp Bizkit, Linkin Park, and KoRn were born. it is usually characterized by
detuned guitars,
pogoing, and extremely fast, whiteboy rapping. their are a few spinoff bands categorized as Nu Metal because it has a bad rap, such as Slipknot and Staind, but they really arent Nu Metal.
one thing to remember-SYSTEM OF A DOWN ARE NOT NU METAL, THEY ARE ALT METAL, LIKE DREAM THEATER WITH LESS SHREDDING AND MORE VOCALS.