'L'amour est bleu' was the 1967 Eurovision entry by Vicky Leandros, representing Luxembourg that year. She actually won the contest with the song, prompting chart success all over Europe - and a flurry of cover versions.
The most famous cover version is the one by Paul Mauriat and his Orchestra, although his version was entirely instrumental. It didn't bother the audiences in Europe, where it became a hit in 1968. Amazingly, his version became the best known version in the United States, where it ranked as the second best sold song of the year.
My collection: 7" single no. 5603 Found: Velvet Vinyl Outlet, Leiden Cost: 1 euro Tracks: 'L'amour est bleu' / 'A banda'