The Opening and ending theme to the 1989 Shoujo Anime "Idol Densetsu Eriko"
"Idol Densetsu Eriko (アイドル伝説えり子?, trans. Legendary Idol Eriko) is a Japanese anime series by Ashi Productions (now Production Reed). It ran in Japan from 1989 until 1990, spanning 51 episodes. The story has been adapted into a 3-volume manga series by Ayumi Kawahara.
The main character, Eriko Tamura, is actually a Japanese idol in real life. She performs the opening theme, and the last episode's ending theme."