This chapter will explain how celebrity, which appeared in the eighteenth century as a new characteristic of cultural life became, during the French Revolution, a key mechanism of political life as well. It will start by outlining the specific features of celebrity, which is based on the curiosity of contemporaries about individuals and on sentimental empathy, and is distinguished from traditional forms of renown such as glory and reputation. It will then discuss how traditional forms of power were transformed, at the end of the eighteenth century, both by the new figure of the “public” and by changing means of communication (especially the periodical press and engraved portraits). Finally, the article will examine the highly ambivalent relationship that the French Revolutionaries negotiated with the new demand for “popularity”—that is, the affective attachment to an actor that introduces the mechanisms of celebrity into the heart of political action.