System of a Down is a renowned Armenian-American heavy metal band known for their unique blend of complex rhythms, innovative use of instrumentation, and socially conscious lyrics. Formed in 1994 in Glendale, California, the band consists of Serj Tankian (vocals, keyboards), Daron Malakian (guitar, vocals), Shavo Odadjian (bass, backing vocals), and John Dolmayan (drums).

“Toxicity” is undoubtedly one of System of a Down's most recognizable songs, right up there with, like, half of their discography. Steal This Album!

provide the "master" version data, which is essential for verifying the authenticity of FLAC files and ensuring they are true CD or vinyl rips rather than upscaled MP3s Understanding Your Request in your query most likely refers to "Private Message."