| "Yakusoku" | ||||
|---|---|---|---|---|
&sq=&lang=&file=File:Ry%C5%ABsei_-_Yakusoku_-_Eir_Aoi_Regular_Edition.jpg) The regular edition cover | ||||
| Single by Eir Aoi | ||||
| from the album Fragment | ||||
| A-side | "Ryūsei" (double A-side) | |||
| Released | June 13, 2018 | |||
| Recorded | 2018 | |||
| Studio | Sony Music Studio (Tokyo, Japan) | |||
| Genre | J-pop | |||
| Length | 4:47 | |||
| Label | Sacra Music | |||
| Composer(s) | Ryosuke Shigenaga | |||
| Lyricist(s) | Eir Aoi, Ryosuke Shigenaga | |||
| Eir Aoi singles chronology | ||||
| ||||
| Music video | ||||
| 約束(Youtube edit) on YouTube | ||||
"Yakusoku" (約束, Promise) is a song by Japanese pop singer Eir Aoi. It was released on her official YouTube on February 8, 2018 as her comeback song from her hiatus,[1][2] before received a physical release together with the song "Ryūsei" on June 13, 2018 as her fourteenth single.[3] It reached number 8 on Oricon and number 10 on Japan Hot 100. The single mark as her first double A-side single.
- ^ "Singer Eir Aoi Returns From Hiatus". Anime News Network. February 8, 2018. Archived from the original on February 8, 2018. Retrieved June 21, 2020.
- ^ ">藍井エイル、活動再開のお知らせ" (in Japanese). Sony Music Entertainment Japan. Archived from the original on February 7, 2018. Retrieved June 21, 2020.
- ^ "藍井エイル、14thシングル「流星 / 約束」6月13日（水）に発売決定！" (in Japanese). Sony Music Entertainment Japan. March 26, 2018. Archived from the original on March 28, 2018. Retrieved June 21, 2020.