is the 40th single by Japanese singer/songwriter Chisato Moritaka. Written by Moritaka and Hideo Saità Â, the single was released by zetima on October 1, 1999. It is a re-recording of the song from Moritaka's 1994 album Step by Step. The song was Moritaka's final single before her retirement following her marriage to actor Yà Âsuke Eguchi and her pregnancy at the end of 1999.
"Ichido Asobi ni Kite yo '99" peaked at No. 60 on Oricon's singles chart and sold 7,000 copies, making it Moritaka's lowest selling single.
Moritaka re-recorded the song and uploaded the video on her YouTube channel on April 27, 2013. This version is also included in Moritaka's 2013 self-covers DVD album Love Vol. 4.