I think of all the enka singers I have heard of, Teresa Teng（テレサテン） is one of just three enka artists for whom I've gotten a Best compilation. The arrangements of the melodies just seem to mix in enka, mood kayo and a European flair which appeals to me.
"Aijin"(Mistress) was the first Teresa Teng song I had ever heard....on "The Sounds of Japan"radio programme on CHIN-FM. It just sounded like enka and sophisticated pop. It was released in February 1985 as her 15th single, and peaked at No. 10 on the Oricon weeklies. It finished as the 56th-ranked song of the year and earned her first appearance on the Kohaku Utagassen in 1985. I was just surprised that she hadn't gotten on the year before for "Tsugunai"（つぐない....Atonement).
The song has been covered by other enka heavyweights such as Sayuri Ishikawa（石川さゆり） and Shinichi Mori（森進一）.