After a long internship at Les Inrockuptibles, Mathieu Fonsny founded the parties and the Forma.T label. He then joined the programming team of the Francofolies de Spa in 2005 before deciding to get 100% involved in Go Go Go ! asbl events since 2014. He was also in charge of the artistic direction of Le Cadran Club in Liege and continues to travel the world in search of new sounds with his musical project Surfing Leons. In addition to alternative music, Mathieu specializes in urban and electronic music and French song.