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.
ja:Kokyū Suru Piano (2012) - Reached number 10 on Oricon. Sales: 10,263
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.
AKB48 Official profile (in Japanese)
Pony Canyon Official profile Archived October 30, 2017, at the Wayback Machine (in Japanese)
Sakiko Matsui (English page) on Google+