Momoko Kikuchi（菊池桃子） is now listed as an actress and TV personality on J-Wiki.. However during my years in Japan, I really just saw her as the pitchwoman for products like soup and Mitsubishi refrigerators, although I knew that she had been on her fair share of trendy dramas in the 90s. But the 80s were her aidoru years. I listened to her trademark song "Sotsugyo"（Graduation) for the first time in years and years, and all that nostalgia came bubbling back up. Composed by Tetsuji Hayashi(林哲司） (who was responsible for Mariya Takeuchi's "September" and Miki Matsubara's City Pop classic "Stay With Me") and written by Yasushi Akimoto（秋元康） (the Svengali behind Onyanko Club and AKB 48), "Sotsugyo"is an evergreen aidoru ballad with Momoko's sweet vocals and sway-friendly melody.
The song was Kikuchi's 4th single which hit the top of the charts soon after its release in February 1985. It is also included in her 2nd album, "Tropic of Capricorn" which was released in September of that year. The aidoru proved her popularity back in those days when she managed to beat even The Beatles in terms of audience numbers when she performed at Tokyo's Budokan.
For some reason, the title of "Sotsugyo" was rather popular as well during the mid-80s. Along with Kikuchi, Yutaka Ozaki（尾崎豊）, and fellow aidoru Yuki Saito（斉藤由貴）also put out songs with that very title. A few years later, Misato Watanabe（渡辺美里）had her own "Sotsugyo" as well. But mind you, graduation has a special place in Japanese culture.