Antonio Torres, a serious singer of Spanish popular music, and Bárbara, a vivacious yé-yé singer, face off in a chaotic contest promoted by Rodolfo Sicilia, an overworked publicist.
Bárbara
Antonio Torres
Rodolfo Sicilia
Rosarito
Braulio
Contest Announcer
Gosálvez
Police Commissioner
Michel
Carlos
Narrator (voice) (uncredited)
Radio Announcer (uncredited)
