Carmela Corren had been discovered by American tv personality Ed Sullivan in the late 1950's, and since had appeared in both television and in films. In the 1960's she became famous in the german speaking countries, so it was no surprise that she was chosen to represent Austria in the 1963 Eurovision Song Contest.
And she filled her task beautifully. Her well trained voice gave meaning to each syllable she was singing and made the song stand out more than it would have with a less shining star.
Unfortunately for Corren, that was not enough in 1963, which in my opinion was the first really good quality Eurovision Song Contest ever. Austria did not have a chance in a contest filled with quality entries and international stars (like Nana Mouskouri, Françoise Hardy and Ester Ofarim). The change of language in the middle might have gathered one or two extra points, but to my mind it makes the song lose its authenticity and sincerity.
While the Carmela Corren never had a chance of winning the contest, it secured Austria the 7th place in the final results (among 16 participants), the arguably best result for the country before Udo Jürgens took over the Austrian representation in 1964 and finally won the contest two years later.
My points 3/5.