[4] With the recording's success, Los Bravos became the first Spanish rock band to have an international hit single.

Four members of Los Bravos — bassist Miguel Vicens Danus, guitarist Tony Martinez, organist Manuel Fernández, and drummer Pablo Sanllehi — had previously worked together in the Spanish band Los Sonors.

[6] After signing with the Spanish division of Decca Records, the band went to England to work with Ivor Raymonde, a British producer, arranger, conductor, and composer, who had been involved in making UK hit songs with such artists as Marty Wilde, Billy Fury, and Dave Berry.

[7] As lead singer Kogel was not a native English speaker (he had to have the lyrics written out phonetically), his vocals had unusual intonations.

[14][better source needed] It was also covered by French vocal trio La Belle Epoque as a disco song, and released as a 1977 single.