In this paper, I critically discuss Riggle’s definition of street art. I argue that his definition has important limitations, and is therefore unsuccessful. I show that his view obscures a defining feature of street art, that is, its subversive power. As a significant consequence of ignoring that essential aspect, Riggle is incapable of fully understanding how street art transforms public space by turning one corner of the city at the time into contested ground. I also suggest that, when appreciating street (...) art's subversiveness, its challenge against the Modern separation of art and life appears more radical than Riggle foresees. (shrink)