Covers:

1937:

Emilio Livi & Trio Vocale Köln [vocal version]

1937:

Dino Di Luca [with choir and orchestra directed by Pippo Barzizza]

1937:

Trio Vocale Sorelle Lescano [three Dutch sisters from a jewish circus family (Sandra, Judith & Kitty Leschan), making it in Italy as Andrews Sisters sound-a-likes, accompanied by four singing men (Quartetto Jazz Funaro)]

1937:

Jean Sablon [as Soirs d'amour; lyrics: Jacques Larne]

1937:

Carlo Buti [for Columbia]

1938:

Tino Rossi

1938:

Rina Ketty [as J'attendrai; definitive lyrics by Louis Poterat; hit during WW II; like her song, Rina came from Italy (real name: Cesaria Picchetto)]

1938:

Django Reinhardt & Stéphane Grappelli [in French]

1939:

Jean Sablon [idem; crooning]

1939:

Bob Scholte [as 'k Wacht Op Jou]

1939:

Kees Pruis [idem]

1939:

Turner Layton [as Au Revoir]

1939:

Rudi Schuricke [als Komm zurück]

1944:

Alfredo Clerici

1945:

Richard Tauber [as Au Revoir]

1945:

Hildegarde [as I'll Be Yours]

1959:

Crew Cuts [idem]

1963:

Cliff Richard [idem]

1965:

Rina Pia [as 'k Wacht Op Jou]

1966:

Vince Hill [as Au Revoir]

1972:

Fausto Papetti

1975:

Rafaella Carra

1975:

Eddy Wally [as Ik Wacht Op Jou]

1976:

Dalida [as J'attendrai]

2000:

André Rieu