Entheos is an American progressive metal super-group formed in 2015 by ex-members of Animosity, Animals as Leaders, and The Faceless. They released their debut EP Primal in March 2015 and their debut album The Infinite Nothing in April 2016. The band announced their return to the studio in March 2017 and released Dark Future in November of the same year.

Animosity was an American death metal band from San Francisco, California, formed in 2000. The band released three studio albums, toured in the United States and Europe, and disbanded in 2009. The classic lineup of Animosity consisted of vocalist Leo Miller, guitarists Frank Costa and Chase Fraser, bassist Evan Brewer and drummer Navene Koperweis.