| Singer(s) | Writer | Composer | Arranger | Time | Appears in |
|---|---|---|---|---|---|
| Katou Emiri Takagaki Ayahi |
Chinatsu Kiseki | --- | --- | 4:25 (Full) | OPED Single |
Stardust☆Promise (星屑☆約束?) is the opening song of Vocal❤Hearts. The song is sung by the voice actresses of Suzumiya Hibiki and Fuchigami Rin, Katou Emiri and Takagaki Ayahi.