is a Japanese recording artist. She has performed in the bands, Oranges & Lemons

Oranges & Lemons

Oranges & Lemons is a Japanese band formed by a duo of music composers and performers, Masumi Itō and Yōko Ueno. The duo is most notable for performing the opening theme , and closing theme to the television anime Azumanga Daioh.Itō and Ueno, still under the title of 'Oranges & Lemons' also...

, Vita Nova, Marsh-Mallow, and Zabadak

ZABADAK

is a Japanese musical group formed by Tomohiko Kira, Yoko Ueno, and Katushi Matsuda in 1985. In 1993, Ueno and Matsuda left and Kira continued the group as a solo act still under the name Zabadak...

. She is also a notable musical composer, having written music for several anime

Anime

is the Japanese abbreviated pronunciation of "animation". The definition sometimes changes depending on the context. In English-speaking countries, the term most commonly refers to Japanese animated cartoons....

 series, most prominent being .hack//Legend of the Twilight

.hack//Legend of the Twilight

is a science fiction manga series written by Tatsuya Hamazaki and drawn by Rei Izumi. The twenty-two chapters of .hack//Legend of the Twilight appeared as a serial in the Japanese magazine Comptiq, and published in three tankōbon by Kadokawa Shoten from July 2002 to April 2004...

, Azumanga Daioh

Azumanga Daioh

is a Japanese comedy manga by Kiyohiko Azuma. It was serialized by MediaWorks in the shōnen manga magazine Dengeki Daioh from 1999 to 2002 and collected in four bound volumes...

 (where one of her bands, Oranges & Lemons, also performs both theme songs), and Brigadoon. From 1995 onwards, she has appeared as a guest singer on many CDs by Ayuo

Ayuo

Ayuo is a Japanese-American composer, poet, lyricist, singer and performer of plucked string instruments including guitar, bouzouki, Irish harp, Chinese zheng, Japanese koto,and medieval European psaltery...

. As of late, she has taken to calling herself simply Yoko, or at least is credited as such in Sōkō no Strain

Soko no Strain

is a mecha anime series by Studio Fantasia. It premiered across Japan on WOWOW from November 1, 2006. A manga adaptation is being serialized in the Dragon Age magazine...

, where she performs the opening song, "Message".

CDs

• "Voices" (December 5, 1993 Biosphere Records)
• "Nursery Chimes" (ナーサリーチャイムス)(May 25, 1997 NTT Pub.)
• "*1" (January 23, 2002 Toera Records)
• "Puzzle" (January 23, 2002 Victor Entertainment)
• "SSS -Simply Sing Songs-" (July 24, 2003 Nippon Crown)
• "Shizen Genshō"(自然現象(means "Natural Phenomena")) (May 25, 2005 Nippon Crown)
• "*2" (December 06, 2006 Toera records)
• "YK20[audio]"(上野洋子 デビュー20周年記念ライヴ“YK20”~20周年につき初ソロ~) (March 4, 2007 tilde disc)
• "Tokyo Humming" (September 10, 2008 Geneon)

Soundtracks

• "Brigadoon Marin-To-Meran
  Brigadoon: Marin & Melan
  is a science fiction anime that ran from 2000–2001, produced by the Sunrise company , and was adapted as a manga by Nozomi Watase. Its story takes place in Japan in 1969; it is about an orphan girl named Marin Asagi who befriends an alien being called Melan Blue...
  
  " Original Sound Track 2 (January 24, 2001 Victor Entertainment)
• ".hack// tasogare-no-yubiwa-densetsu
  .hack//Legend of the Twilight
  is a science fiction manga series written by Tatsuya Hamazaki and drawn by Rei Izumi. The twenty-two chapters of .hack//Legend of the Twilight appeared as a serial in the Japanese magazine Comptiq, and published in three tankōbon by Kadokawa Shoten from July 2002 to April 2004...
  
  " original sound track (February 21, 2003 Victor Entertainment)
• "Gamera: Chĩsaki Yusha-Tachi (Gamera the Brave)
  Gamera the Brave
  Gamera the Brave, released in Japan as , is a kaiju film released in 2006, produced by Kadokawa Pictures. This is the 12th and final Gamera film and the first produced by Kadokawa Pictures after they purchased a percentage of the remaining assets of Daiei Motion Picture Company, the original...
  
  " Original Motion Picture Soundtrack (March 26, 2006 avex trax)
• "Dolphin-Blue~Fuji,Mouichido-sora-e/Churaumi~Okinawa Churaumi-suizokukan-e-no-shõtai" (July 4, 2007 tilde disc)