Japanese female country singer/song from the 50's and 60's

A few years ago I became interested in the popularity of country music and southern/western U.S culture that had emerged in Japan. After a little bit of looking into it, I found a few notable country artists from Japan (most attempted to sing in English which was interesting and kind of funny) However, one particular artist stood out, more specifically, one song. I do not speak or read Japanese so I have no idea what the song or the artist's name was, I don't really even remember how it goes, only brief flashes in my memory. Here's what I do know, the singer (at the time of the song's release around 1960 or so) was a pretty and young Japanese woman, I know this because the video of this song I had found was just a still image of her, dressed in "Cowgirl" style, with the songs audio behind it. This video, it seems has been removed from the platform for one reason or the other. I remember being so taken with how pretty this song was that I copy and pasted the title into Google to try and figure out who sang it and what it was all about. Unfortunately, all I remember from this research was that this singer was around in the 50's and 60's and found moderate success in Japan, but nowhere else. Now, the song itself. This was a very pretty, slow, Patsy Cline-esque song, I don't remember much about the rhythm or the lyrical content (it being in Japanese) however, one stand out detail is that there is a part in the middle of the song where the singer has a speaking part where she whispers something softly, almost sensually, to the audience before continuing to sing. In doing my own research recently to try and find this video and song again, I came across a popular Japanese country singer named Tomi Fujiyama. I do not believe she is the right artist because her voice sounds different than I remember, but, of course, I could be wrong.
I apologize for such vague details and my bad memory, but any insight would be appreciated.