"Catherine" was the Luxembourgish entry in the Eurovision Song Contest 1969, performed in French by French singer Romuald (who had previously represented Monaco at the 1964 Contest with "Où sont-elles passées" and would represent that country again).
The song is a ballad, in which Romuald reminisces about a girl he went to kindergarten with called Catherine. He sings that he was already in love with her then, and while they have lost touch since that time, he retains his feelings for her. The song ends with his question as to whether she has found love herself, and it is unclear whether he wants her to have done so. Romuald recorded the song in four languages; French, German, Spanish and Italian.
At the close of voting, it had received 7 points, placing 11th in a field of 16.