Written by Frank Dostal and Rolf Soja, and produced by Soja, this standard disco song was a major hit across Europe and became the duo's sole number one single in the UK, spending a single week at the top in October 1977. It did not chart in the United States, despite receiving airplay in several markets. It is one of the best-selling singles of all time, with an estimated total of 18 million units.The breathed intro to the song is very similar to Harold Melvin and the Blue Notes and Thelma Houston's "Don't Leave Me This Way", which was a clear influence on the Baccara song.

Baccara was composed of Spanish flamenco dancers Mayte Mateos and Maria Mendiola. They were discovered on the island of Fuerteventura by RCA Records executive Leon Deane who saw them dancing flamenco and singing traditional songs for tourists; he subsequently signed them to the label.

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