In 1964, Cogoi was chosen as the Belgian representative to perform his self-penned song "Près de ma rivière" ("Close by My River") in the ninth Eurovision Song Contest, which took place on 21 March in Copenhagen. For the first time since the inaugural contest in 1956, the Belgian entry was chosen by internal selection on the part of TV channel RTBF rather than by a public or jury vote. "Près de ma rivière" received only two votes (from Monaco and Portugal), which was enough for a joint tenth-place finish of 16 entries, as four other songs received no votes at all.