Nope, I was surprised when I learned that she had once been an aidoru who sang this cute if slightly corny little number called "Goodbye, My Love". Released in April 1974, the song was written by Rei Nakanishi（なかにし礼）and composed by Masaaki Hirao（平尾昌晃） (who had composed and sung "Canada kara no Tegami"). Once in a while, another one of our group would also sing this one although I wouldn't find out who the original singer was for quite some years. The song went as high as No. 14 on Oricon, and her 6th single would become her first big hit.
The late Teresa Teng (テレサ・テン) also did her own winning cover of the song although I'm not sure if it ever came out as a single in Japan. Apparently, it's on one of her BEST compilations.