Feto In Fetus band from Poland founded in 2004.The musicians themselves describe the species as "grinding deathcore" which seem to perfectly reflect the kind of music played by them. Current members:
Widzik - vocals (since 2008)
Broom - guitar (since 2004)
Rocho - bass (since 2009)
Misiek - drums (since 2006)

Read more about FETO IN FETUS on Last.fm.