On 12 June 2018, it was announced that member Masaki Aiba would star in the television series Boku to Shippo to Kagurazaka.

[1] Two months later, on 12 September, Arashi announced that their next single would be used as the theme song for the television series.

[6] Morning news programs began airing previews of the music video on the same day.

[7] Song previews for "Kimi no Uta" and "Sky Again" were added to the group's official website on 18 October.

[10] "Kimi no Uta" debuted at number 69 on the Billboard Japan Hot 100 chart on the date ending 15 October 2018.