A new commercial for back number 's first best-of album, "アンコール" released on December 28, 2016, has been completed! The memorable tagline from the commercials airing since last year, "I wish I hadn't listened to back number," remains the same, but the new commercials have been produced in two versions, each featuring Haruka Igawa and Kumiko Aso, who is making her first on-screen appearance since giving birth to her second child last November. The commercials will start airing today, February 16th, and will also be available on video sharing sites.