Discover Wonder Girls' highly successful second Korean-language studio album, Wonder World. Featuring the chart-topping single Be My Baby, this album showcases the group's incredible talent and popularity. With 35,051 physical copies sold in just one month, it's no wonder the album topped the Gaon and Billboard World Albums charts.
CD: Sealed
Packaging: Mint
Label: JYP Entertainment – L100004386, Loen Entertainment – L100004386
Country: South Korea
Tracklist:
| 1 | G.N.O. | 3:32 |
| 2 | Be My Baby | 3:34 |
| 3 | Girls Girls | 3:36 |
| 4 | Me, In | 3:16 |
| 5 | Sweet Dreams | 3:36 |
| 6 | Stop! | 3:24 |
| 7 | Dear. Boy | 3:13 |
| 8 | 두고두고 | 3:48 |
| 9 | SuperB | 3:22 |
| 10 | Act Cool | 3:35 |
| 11 | Be My Baby (Ra.D Mix) | 3:30 |
| 12 | Nu Shoes | 3:29 |
