Rock and roll represented a connection between the youth of Mexico, and the trend-setting youth of America. Both countries had modernized rapidly after World War II, and an effect of this modernization was a desire for a unifying identity that separate from that of past generations with a Revolutionary identity, and especially from that of their parents and grandparents fought for and brought about the Mexican Revolution. The harder the PRI tried to control the identity of Mexico’s citizens, the more the youth of Mexico felt it necessary to fight back.