| Song | Nobody Knows |
| Artist | YoungStar |
| Album | 듀엣 O.S.T |
| When I hang myself to loneliness | |
| When I give my hand out | |
| to your longing | |
| Who's gonna put a rope | |
| around my neck | |
| Who's gonna hold my hand | |
| It's something | |
| no one will ever know | |
| I wouldn't know | |
| nor will anybody | |
| It's something | |
| no one will ever know | |
| I wouldn't know | |
| nor will anybody | |
| To keep on living | |
| Takes courage | |
| To keep on living | |
| Takes courage | |
| To keep on living | |
| Takes courage | |
| To keep on living | |
| Takes courage | |
| To keep on living | |
| Takes courage |