 He was one of the leaders of the Tejano music scene, and from an early age followed mariachi and conjunto music.He began his musical career as a backup vocalist for the queen of Tejano, Selena, as a member of Selena y Los Dinos Astudillo also sang two duets with her—1989's "Amame, Quiereme" and 1992's "Siempre Estoy Pensando en Ti", both of which were nominated for Vocal Duo of the Year at the Tejano Music Awards.He co-wrote some of Selena's number one hits such as "Bidi Bidi Bom Bom", "Amor Prohibido", and the BMI award-winners "La Carcacha", "Qué Creias", and "Como la Flor."