Masato Shimon

Masato Shimon (子門 真人), also known as Masato Simon and Ryu Kisami, is a retired Japanese vocalist from Meguro, Tokyo. He is most known for his contributions to the theme songs of various anime and tokusatsu series. In his career, he has sung under the names Koichi Fuji (藤 浩一) and Akira Tani (谷 あきら). "Masato Shimon" is also his recording name, as he was born with the name Masaharu Fujikawa (藤川 正治). He recorded a song "Oyoge! Taiyaki-kun" (1975) with only 50,000 yen, but the single sold 4,547,620 copies and became the best-selling single in Japan, a fact certified by Guinness World Records.