Yakusoku (Eir Aoi song)
| "Yakusoku" | ||||
|---|---|---|---|---|
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 | ||||
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| 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, before received a physical release together with the song "Ryūsei" on June 13, 2018 as her fourteenth single. It reached number 8 on Oricon and number 10 on Japan Hot 100. The single mark as her first double A-side single.