OAO was a collaboration between guitarist and live electronic musician Otso Lähdeoja and the plastic arts duo Marswalkers (Alexandre Berthier and Karl-Otto von Oertzen).

OAO was a collaboration between guitarist and live electronic musician Otso Lähdeoja and the plastic arts duo Marswalkers (Alexandre Berthier and Karl-Otto von Oertzen). OAO first completed a residency at Quebec City’s Œil de Poisson in 2009. At Avatar in 2010, the group worked on the intersections between music, digital arts, and performance to develop a live performance, which was presented at Mois Multi 12.