Santa Barbara's Snot were one of the most promising nu-metal/funk metal acts of the late '90s, with Lynn Strait's charismatic swagger and the band's eclectic blend of funk, punk, and heavy grooves on 'Get Some' setting them apart from their more one-dimensional peers. Strait's tragic death in a 1998 car accident cut the band short at the height of their potential, though the posthumous 'Strait Up' tribute album featured contributions from Corey Taylor, Serj Tankian, and others.

Los Angeles industrial metal outfit Spineshank were a key part of the late-1990s/early-2000s Roadrunner Records roster, blending Fear Factory's mechanized precision with nu-metal's groove and electronic textures. Albums like 'The Height of Callousness' and 'Self-Destructive Pattern' showcased a band more technically accomplished and sonically adventurous than many of their nu-metal peers, incorporating drum machines, samples, and atmospheric programming alongside crushing guitar riffs. After disbanding in 2004 and briefly reuniting, Spineshank left behind a catalog that rewards revisiting for fans of the industrial-metal crossover era.

System of a Down shattered every convention of heavy music in the early 2000s, channeling Armenian folk melodies, political fury, and absurdist humor through Serj Tankian's otherworldly vocal acrobatics and Daron Malakian's frenetic guitar work. 'Toxicity' and the 'Mesmerize/Hypnotize' double album achieved massive commercial success while remaining genuinely subversive, establishing SOAD as one of the most original and important bands in rock history.