Mitzi Gaynor’s voice may have been dubbed. If Brazzi’s singing was dubbed, they did a fine job of matching it with his speaking voice. They’re identical. And if it was dubbed, the singer had a frenchified accent exactly like Brazzi’s. I think it was real. JMHO.
Mitzi’s gaynor did her own singing. I will have to check the additional info on my DVD about Brazzi though. I will let ha know.