The public space in the Arab World has historically been controlled and seized by political authorities. This appropriation has created a deep rift between citizens and public places. Nevertheless, since the beginning of the Arab revolutions, new youth art forms have emerged liberating the arts from traditional formalism and these have been transferred to open spaces making them accessible to the people. This research seeks to explore the youth street art that emerged during the Tunisian revolution, not only as an innovative artistic trend, but also as a social movement that claims a new kind of citizenship. It aims to analyze the philosophical and aesthetic purposes of street art and its role in the liberation of public space. The methodology is based on qualitative interviews and participant observation with members of two street art groups Ahl Al Kahf and Fanni Raghman Anni that emerged during the Tunisian revolution of 2011. The results reveal that the youth revolutionary artistic phenomenon represents a new creative project and constitutes a. intellectual and artistic rupture with the prevailing aesthetic practices.