Tellervo Kalleinen & Oliver Kochta-Kalleinen design and realise participatory art projects, which look into the dialogue between an individual and a collective. Their collaboration started in Helsinki in 2003, when they organised The First Summit of Micronations in the role of the curators of Amorph!03- festival (Artists´Association MUU, 2003).
Together they founded Complaints Choirs -concept, which has spread to more than 200 cities around the world as an open source concept. They have made participatory cinema works such as People in White (2011), Dreamland (2010) and Archipelago Science Fiction (2011). They have created interactive video installations, such as 101 For All, which looks beyond the opinions and statistics of a cross-section of the Finnish population.
They have exhibited widely all around the world in venues such as Mori Art Museum (Tokyo), P.S.1 (New York), The Kitchen (New York), Shedhalle (Zürich), Kunsthalle Fridericianum (Kassel), KUMU Art Museum (Tallinn), S.M.A.K. (Ghent), Shanghai 21st Century Minsheng Art Museum (Shanghai) and Ars Electronica Center (Linz). They received AVEK Award in 2012. In 2014 they received the most prestigious art award of Finland, Ars Fennica.