Gut is a German grindcore band, often credited as fathers of pornogrind, and known for their over-the-top vocals and morbid, pornographic imagery. Natalie Purcell, in her book Death Metal Music: The Passion and Politics of a Subculture, suggests that pornogrind is defined solely on the basis of its lyrical content and unique imagery, its focus on pornographic content. Purcell does note, however, that bands like Gut include "simpler, slower, and more rock-like songs".