Rina Ketty
The song reached superstatus during World War II and was appreciated by Allied soldiers and Axis soldiers alike ( equalled only by Lale Andersen's "Lili Marleen" and perhaps by Vera Lynn's "We'll Meet Again" ) . 
<triplet> Lili Marleen <subj> Lale Andersen <obj> performer <triplet> We'll Meet Again <subj> Vera Lynn <obj> performer