El circo (song)
The lyrics describe two brothers, "Carlos" and "Raúl" (in reference to Carlos Salinas de Gortari, president of Mexico from 1988 and 1994, and his brother Raúl Salinas de Gortari), who form a "circus" (a drug cartel) and get rid of the other "circuses" in the country. After the brothers get wealthy, Raúl makes Carlos' money disappear (a reference to the Mexican peso crisis) and their circus ends. Raúl is jailed, while Carlos leaves the country, and the people are finally at peace, unless another circus arrives and the story repeats itself.
Carlos Salinas de Gortari
Salinas was one of the Mexicans of his generation who studied at elite foreign universities. He earned a master's degree in Public Administration from Harvard University in 1973 and went on to earn a PhD from Harvard's Kennedy School of Government in 1978. His doctoral dissertation was published as "Political Participation, Public Investment and Support for the System: A Comparative Study of Rural Communities in Mexico".