Aiko (Japanese singer)

Aiko Yanai (柳井愛子, Yanai Aiko; born 22 November 1975), known simply as Aiko (stylized in smallcaps), is a Japanese singer and songwriter. She is most famous for her hit songs Ashita, Kabutomushi, Hanabi, Sakura no Toki, Boyfriend, and Kira Kira.