Kumiko Ōsugi (大杉久美子, Ōsugi Kumiko; born July 10, 1951) is a J-pop artist from Tokyo. In 1964, she recorded a song with Crown Records using the pseudonym Momoko Shibayama (柴山モモコ, Shibayama Momoko). The first song to be released under her real name was "Attack No. 1" (アタックNo.1, Atakku Nanbā Wan), the opening theme for the Attack No. 1 anime. She went on to perform theme songs for many other anime, including Doraemon, Aim for the Ace!, Araiguma Rascal, Flanders no Inu, and Oz no Mahōtsukai. She is referred to by fans and the Japanese press as the "Queen of Anime Song" and is considered to be one of the "Four Heavenly Kings and Queens of Anison" (アニソン四天王) alongside Ichirou Mizuki, Isao Sasaki, and Mitsuko Horie. The opening theme to Heidi, Girl of the Alps is often mis-attributed to Ōsugi when it was actually performed by Kayo Ishū, a studio singer. Ōsugi did, however, perform the series' ending theme.
Source: “Kumiko Ōsugi”, English Wikipedia (CC BY-SA 4.0), excerpt