"Catharsis" is the ninth album by American heavy metal band Machine Head, released on January 26, 2018 on the Nuclear Blast label. A cursory listen suggests that Machine Head have gone back to the raw, groovy, nu-metal bounce that typified many of the cuts from 1999’s The Burning Red and 2001’s almost universally derided Supercharger. But peeling away the layers reveals a record with far more substance than either of those divisive albums was able to muster.