I. Introduction
Wonder World is the second studio album by the South Korean girl group Wonder Girls.
II. Background & Release
On November 4th, 2011, the album's name was revealed to the public, and it was released three days later.
III. Tracklist
| Title | Writer | Producer | Length |
| G.N.O. | Fredrik "Fredro" Ödesjö, Yenny Park "Ha:tfelt", 이우민 'Collapsedone' | 이우민 'Collapsedone', Fredrik "Fredro" Ödesjö | 3:30 |
| Be My Baby | Park Jin-young | Woo S.Rhee "RAINSTONE", Fingazz | 3:31 |
| Girls Girls | 심은지 | 심은지 | 3:33 |
| Me, In | Shin Joong Hyun | 이우민 'Collapsedone', Yenny Park "Ha:tfelt" | 3:14 |
| Sweet Dreams | Billion Dollar Baby, Jan "Janski" Lindvaag for Deepfrost, Noday, Thomas J. Heyerdahl, 심은지 | Billion Dollar Baby, Thomas J. Heyerdahl, Jan "Janski" Lindvaag for Deepfrost, 심은지 | 3:34 |
| Stop! | 홍지상 | 홍지상 | 3:22 |
| Dear Boy | DJ Nure, Fingazz, Jessica Martinez, Nikki Flores, 장연정 | Fingazz | 3:11 |
| 두고두고 (Long Long Time) | Park Jin-young | Park Jin-young, Woo S.Rhee 'RAINSTONE' | 3:46 |
| SuperB | east4A, 김이나 | east4A | 3:19 |
| Act Cool | San E, Xepy, 혜림 | Xepy | 3:33 |
| Be My Baby (Ra.D mix) | Park Jin-young | Ra.D | 3:27 |
| Nu Shoes | Alexander Kronlund, Lukas Hilbert, Woo S.Rhee 'RAINSTONE' | Woo S.Rhee 'RAINSTONE' | 3:29 |
IV. Spotify Playlist
External Content
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V. Videos
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VI. Reception
On the weekly charts in 2011, the Circle Chart ranked the studio album at #1, and Billboard ranked the studio album at #5.
On the monthly charts in 2011, the Circle Chart ranked the studio album at #4.
On the year-end charts in 2011, the Circle Chart ranked the studio album at #42.
The album received at least 43,349 sales in South Korea.
