This article looks at popular responses to the zarzuela Chin-Chun-Chan and the issues that surfaced around its timely subject in early twentieth-century Mexico City. The principal source is the Mexico City satiric penny press for workers, supplemented by somewhat less polemical broadsides, both sold on the streets of the capital. Aimed mostly at working-class Mexicans, these sources offer a glimpse at popular attitudes circulating in a public sphere otherwise dominated by the perspective of educated elites. The article has four sections. First, it briefly reviews social commentary on the democratization of musical theater. Second, it examines Chin-Chun-Chan as a political symbol that crystalized around working-class complaints about the Porfirian regime, especially its alleged disregard for Mexican workers and Mexican national identity. Third, it analyzes the ways in which the phrase "Chin-Chun-Chan" entered popular language as a racial signifier for a range of things, some of which bore little relation to its theatrical origins. Finally, it links popular Sinophobia in late Porfirian Mexico City to the virulent anti-Chinese campaigns in northern Mexico, which played a key role in defining national identity after the 1910 Revolution, and to the "hemispheric orientalism" that has characterized anti-Asian sentiments throughout the Americas. [ABSTRACT FROM AUTHOR]