Obszön Geschöpf (also known as OG) is a French musical project created by Remzi Kelleci in 1996/97 in Boulogne-sur-Mer, France.
After putting together a live line-up, OG played in several European cities in 2009 and released their fourth album, Erection Body Mutilated on BLC Productions in late 2009.
The album includes remixes from Skrew and Richard Thomas of Ventana and Mushroomhead.
OG toured the United States in March 2011 to promote Symphony of Decay.
OG describes its sound as a mix between metal bands such as Slayer, Pantera, Exhorder, Dark Angel, and Exodus and industrial metal bands such as Nine Inch Nails, Fear Factory, White Zombie, Die Krupps, KMFDM, Slipknot, and Clawfinger.