The 1995 film Desperado , directed by Robert Rodriguez , remains a landmark of 90s action cinema, primarily due to its opening sequence featuring performing " Canción del Mariachi ". This scene transcends traditional film scores by integrating the character’s identity with a high-energy musical performance that established the "El Mariachi" legend. The Opening Theme: "Canción del Mariachi"

The theme song, often referred to as "Morena de Mi Corazón," was written by Robert Rodriguez and performed by Los Lobos featuring Antonio Banderas on lead vocals.