translated song; Italian version of "¿Quién será?", lyrics adapted by Enzo Luigi Poletto and Giacomo Mario Gili

1959 film by Gilberto Martínez Solares

original bolero written and composed by Luis Demetrio

English version of "¿Quién será?" adapted by Norman Gimbel

original song composed by Luis Demetrio and Pablo Beltrán Ruiz, lyrics by Pablo Beltrán Ruiz

translated song; Icelandic-language version of "¿Quién será?", lyrics adapted by Þorsteinn Sveinsson