||Koi wa C'est Si Bon
||Benkyo Shiyou yo
||Koi wa C'est Si Bon (Karaoke)
"Koi wa C'est Si Bon" is the debut single recorded by Sasaki Yuko, and produced by Go Yamazato. It was released shortly after Sasaki won the ASAYAN TV Audtion, and was used as its ending theme, along with the ending theme to All Night Nippon SUPER! Neptune. The song has been described as being reminiscent of French 1960's pop.