The A-side of Shizuka Kudo's 1990 single, "Kuchibiru Kara Biyaku" showcases her signature synth-pop sound with a driving beat and catchy melody. The single was a commercial success, further cementing her status as a solo artist.
- "Kuchibiru Kara Biyaku" reached number one on the Oricon weekly singles chart in Japan. The single was written by the prolific songwriting duo Yasuaki Iwane and Tsugutoshi Goto. It was released by PONY CANYON INC. on January 10, 1990.
- The B-side, "Shape Up," offers a more subdued, atmospheric counterpoint to the energetic A-side. "Kuchibiru Kara Biyaku" was featured on Kudo's fourth studio album, *Rotary,* released later in 1990.
- The single continued Kudo's streak of number-one hits, making "Kuchibiru Kara Biyaku" one of her most recognizable songs from the era. It exemplifies the polished, Western-influenced synth-pop sound that dominated Japanese charts at the time.
Shizuka Kudo is a Japanese pop singer and former member of the girl group Onyanko Club. She is known for her successful solo career in the late 1980s and 1990s, characterized by a blend of pop and synth-pop sounds. In 1990, Kudo was at the height of her popularity, having established herself as one of Japan's top female solo artists. "Kuchibiru Kara Biyaku" arrived as she continued to deliver hit singles, solidifying her image as a sophisticated pop idol.
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