Based on “Brez besed” by Berta Ambroz (1966).
Hit versions by Mocedades (US #9 1973), Eydie Gorme (MOR #41 1973).
From the wiki: “‘Eres tu’ (‘It’s You’) was written in 1973 by Juan Carlos Calderón and performed by the Spanish band Mocedades. The song was chosen as Spain’s entry in the 1973 Eurovision Song Contest. After reaching second place in the contest, ‘Eres tu’ was released as a single. The song also has an English version, titled ‘Touch the Wind’, with lyrics by Mike Hawker (but which actually featured a completely different set of lyrics rather than a translation of the original Spanish lyrics).
“Calderón was accused of plagiarism following suggestions that ‘Eres tu’ was merely a rewrite of the Yugoslav entry from the 1966 Eurovision Song Contest – ‘Brez besed’ (‘Without words’) – sung by Berta Ambrož. ‘Eres tú’ was not disqualified but it has been suggested that this may have resulted from political reasons, as Francisco Franco’s Spain was seen as more part of the European mainstream than Josip Broz Tito’s Yugoslavia.”