Ole Petter Andreassen, is a Norwegian musician and producer from Flekkefjord, Norway. He is also known under the stage names El Doom, Ollis and Ztalin. Andreassen plays the guitar in the bands Thulsa Doom and The Cumshots, the drums in Black Debbath, and is the guitarist/vocalist in The Hillstone Halos, El Doom & The Born Electric and the Creedence Clearwater Revival tribute band Young Fogertys. He also had a project called The Caliban Sessions in which he and other guest musicians played severa...
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