Luxembourg in the Eurovision Song Contest 1978

Luxembourg was represented by Spanish duo Baccara, with the song '"Parlez-vous français?", at the 1978 Eurovision Song Contest, which took place on 22 April in Paris. For only the second time, broadcaster RTL organised a public national final rather than their usual method of internal selection.
Baccara were one of the most internationally famous acts ever to appear at Eurovision, being already known throughout Europe from two recent hugely successful singles, "Yes Sir, I Can Boogie" (which had spent a week at the top of the UK Singles Chart in late 1977) and "Sorry, I'm a Lady". "Parlez-vous français?" was written by Frank Dostal, who had also penned the duo's previous recordings. There was some degree of facetious comment that so similar was it to the two hits that it should have been called "Yes Sir, I'm a Lady". However Baccara were to find (as had Silver Convention the year before) that being a big name act did not necessarily translate into Eurovision success....