Sakiko Matsui (松井咲子, Matsui Sakiko, born December 10, 1990 in Warabi, Saitama Prefecture) is a Japanese singer and pianist. She was a member of AKB48. Concurrently as a student specializing in piano at Tokyo College of Music, she has released a piano instrumental album Kokyū Suru Piano on October 3, 2012, which reached number 10 on Oricon's albums chart.^[1][2]

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Quick Facts 松井 咲子, Background information ...

Sakiko Matsui 松井 咲子
Matsui in May 2014
Background information
Born	(1990-12-10) December 10, 1990 (age 33)
Origin	Warabi, Saitama Prefecture, Japan
Genres	J-pop pop classical
Occupation(s)	Japanese idol pianist actress
Instrument(s)	Vocals Piano
Years active	2009–present
Labels	King (AKB48) Pony Canyon (Solo)
Spouse(s)	Kohei Ueda ​ (m. 2023)​

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• Bingo (2012)^[4]

On December 5, 2023, Matsui and comedian Kohei Ueda jointly announced through their respective social media accounts that they had registered their marriage on December 3.^[5]