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He was the first Greek singer on the Eurovision stage when in 1961 he entered for Austria in 1961 with the song Sehnsucht (Desire). That song is one of the rare missing songs in anyone's Eurovision record collection, as it's one of the unfound records of which no release is confirmed.
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Jimmy Makulis recorded two Eurocovers, both released in 1971.
Love is blue (L'amour est bleu, in English) can be found on the 1971 LP With Love (Hippo Records).
He also recorded a Greek version of Severine's 1971 winner for Monaco, Un Banc, Un Arbre, Une Rue : Μια καρδιά χτυπά (Mia kardia ktipa). I don't have any details on the original release but the song was issued on CD Τα Ερωτικά του '60 & '70 in 1996 and το ελληνικο τραγουδι in 2006.