Sayaka Ichii
Sayaka Ichii is a Japanese pop singer and former member for Japanese girl group Morning Musume. She is now a TV talent and actress.
Also recorded as Sayaka Watanabe
Sayaka Ichii
- Name
- Sayaka Ichii 市井 紗耶香
- Born
- 31 December 1983
- Occupation
- * Singer
- Full name
- 渡邊紗耶香.
- Nationality
- Japan.
- Fields
- J-pop.
- Languages
- Japanese.
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Sayaka Ichii is a Japanese pop singer and former member for Japanese girl group Morning Musume. She is now a TV talent and actress.
Admitted source layer · organised and presented by VALÉORINE
Note VALÉORINE
No house-authored Note is published until its assertions and sources pass the VALÉORINE evidence contract. The documentary article remains available in full while that enrichment is being consolidated.
Documentary enrichment in progress · no unsupported statement published
Reference Check
Propose documentary evidence for Sayaka Ichii. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
Documentary evidence
Evidence Panel
not yet certified
- Identity
- resolved
- Independent source families
- 0
- Admitted assertions
- 0
- Open conflicts
- 0
Authority files
wikidata · Q1372585 · wikipedia · Sayaka Ichii
In this article
Key facts
Key facts
• Name — Sayaka Ichii 市井 紗耶香 • Alias — Sayarin, Kā-san Sayaka Watanabe • Born — 31 December 1983 • Origin — Funabashi, Chiba, Japan • Genre — Japanese pop • Occupation — * Singer • Actress • Dancer • Years Active — 1998–present • Label — Up-Front Agency (May 1998 — November 2003) Ranves (August 2009 — 2013？) UnderZ Group Co., Ltd. (2014? — January 2016) Arc-en-Ciel (November 2019 — February 2020) A. Round (April 2026 —) • Spinoffs — Morning Musume, Cubic-Cross, Petitmoni, Aoiro 7, OFR48 • Website — Sayaka Ichii - Ranves
Morning Musume and Hello Project
Morning Musume and Hello Project
Ichii was born in Funabashi, Chiba, and joined the girl group Morning Musume in 1998. She, along with Mari Yaguchi and Kei Yasuda, formed the second generation of members. While in Morning Musume, Sayaka Ichii was put into the spin-off group, Petitmoni with Maki Goto and Kei Yasuda. Ichii was also part of the Hello Project! Summer Shuffles 2000 group Aoiro 7. She also recorded a folk song album with Yuko Nakazawa. She left Morning Musume in May to continue her education.
After Morning Musume
After Morning Musume
Sayaka Ichii graduated from Morning Musume and Hello! Project after the single "Happy Summer Wedding" in 2000. A year after she left, she formed the group Ichii Sayaka in Cubic-Cross, trio with Taisei (keyboardist from Sharan Q), and wrote two of their songs. In 2003, Cubic-Cross disbanded, and after a solo single. She retired from the music business at the end of the year. In February, she joined Ranves Management agency. On August 30, she returned to TV in a TBS show called Sunday Japan. She also as a politician by the member of Constitutional Democratic Party of Japan, she was a member of House of Councillors of Japan on 26 April 2024, but she only served 93 minutes and resigned on the same day.
Personal life
Personal life
Ichii announced in 2004 that she was pregnant and was to marry the group's guitarist, Naoki Yoshizawa. The couple had two daughters but divorced in 2011. Ichii later remarried to a beautician and gave birth to a son. Her fourth baby was born in 2017.
Albums
Albums
• Duet with Yuko Nakazawa • Folk Songs (November 29, 2001) • Ichii Sayaka in Cubic-Cross • C:BOX (November 20, 2002)
Singles
Singles
• Sayaka Ichii in Cubic-Cross • Jinsei Ga Mou Hajimatteru (April 24, 2002) • Shitsuren Love Song (July 17, 2002) • Todoke! Koi no Telepathy (November 9, 2002) • Zutto Zutto (May 1, 2003) • Sayaka Ichii • 4U ~Hitasura~ (September 3, 2003)
DVD
DVD
• Folk Days (February 28, 2002)
Photobooks
Photobooks
• Self (February 10, 2002)
Primary material
Documents and archives
reference work
- “Sayaka Ichii”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q1372585: Sayaka Ichii
Unverified · Wikidata
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Partially resolvedauthority record
Unverified
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 15 August 2026.
Elsewhere in Film memorabilia
37,408 published records in this field, each with its sources named.
- Saxon LoganPerson
- Sayaji ShindePerson
- Sayaka AkimotoPerson
- Sayaka AokiPerson
- Sayaka KitaharaPerson
- Sayavush AslanPerson
- Sayed BadreyaPerson
- Sayo YamamotoPerson
Best supported in this field
For owners
Own a work by Sayaka Ichii?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.