There are two Substance Abuse artists of this name.

1) The hip-hop group from USA

2) 3 piece crossover thrash band from Melbourne, Australia formed in 2013.
http://substance-abuse.bandcamp.com/


1) You can almost say that Substance Abuse's Overproof is two albums. One half a chillin' and relaxin' summer time slow ride in the vein of People Under The Stairs and Ugly Duckling, the other a mad scientist surgical creation, lurking somewhere between Kool Keith and the Def Jux crew. Emcees Eso Tre and Subz are adept at invoking the laid back West Coast party vibe, drawling out several cruised out head nodders over the course of the album. Though the second more experimental side of the album doesn't always work as well as it could, it creates a sense of balance and progressive accomplishment rarely seen on a debut album. Flaws aside, the album clearly paints Substance Abuse as a duo to keep an eye on.
Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.
Artist biography from last.fm