Yoko Ueno (上野洋子 Ueno Yōko; born: October 11th, 1963) is a Japanese recording artist. She has performed in the bands, Oranges & Lemons, Vita Nova, Marsh-Mallow, and Zabadak. She is also a notable musical composer, having written music for several anime series, most promeneint being ".hack//Legend of the Twilight," "Azumanga Daioh" (where one of her bands, Oranges & Lemons, also performs both theme songs), and "Brigadoon." As of late, she has taken to calling herself simply Yoko, or at least is credited as such in "Sōkō no Strain," where she performs the opening song, "Message."

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