| Groups / Birthdates | Idols |
| AA ( 1 October ) | |
| Wonder Girls ( 4 October ) | |
| Teen Top ( 5 october ) | |
| T-ara ( 5 October ) | |
| Secret ( 6 October ) | |
| MBLAQ ( 7 October ) | |
| Kara ( 7 October ) | |
| Miss A ( 10 October ) | |
| Super Junior - M ( 11 October ) | |
| Secret ( 12 october ) | |
| | Groups / Birthdates | Idols |
| Sunny Hill ( 14 october ) | |
| Super Junior ( 15 October ) | |
| 4Minute ( 15 October ) | |
| B.A.P ( 15 October ) | |
| MBLAQ ( 16 October ) | |
| CSJH ( 16 October ) | |
| RaNia ( 18 October ) | |
| F(x) ( 24 October ) | |
| N-Train ( 25 October ) | |
|