This article examines the promotion of Mexico's national image in the Americas during the Cárdenas period, using as a starting point a scandal arising from a 1940 performance of Mexican dancers at a cabaret in Panama. Mexican diplomats found the show objectionable because it clashed with the image of women that they used in their efforts to raise the country's reputation abroad. By investigating these efforts, as well as the career of Eva Pérez Caro, the dance troupe's leader, the article contributes to our understanding of the relationship between gender, cultural performance and nationalism, and the role that they played in Mexico's foreign relations.