There are least three Artists with the name Guinea Pig: 1. Sludge/Doom Metal from Greece
2. Gorenoise band from the US
3. Post-punk band from Jesi, Italy 1. Guinea Pig started to take form during the spring of 2007 in Patras in the ashes of former band Obey. Yiannis and Seraphim (Bohemian Grove) started to jam with Nikos (Caterpillar, ex-Lucky Funeral) in drums some heavy doom/sludge music in the vein of Black Sabbath, Iron Monkey, Acid Bath, Eyehategod, Electric Wizard, Cathedral etc.