천일의 약속 OST Part 3 - Single
| Composed by | 성시경 Sung Sikyung |
| Published by | 예인문화 |
| Release type | Film Score - Official Release |
| Format | 1 Digital - 2 tracks |
| Release date | November 15, 2011 |
| Duration | 00:07:42 |
| Genres |
| 1 | 한번의 사랑성시경 Sung Sikyung | 03:51 |  |
| 2 | 한번의 사랑 (Inst.)성시경 Sung Sikyung | 03:51 | |
