| # | Title | Rating | Length |
|---|
| 1 | Bad Girl Good Girl- assistant recording engineer:
- 이재은
- recording engineer:
- 최자욱, 정의석 , 정호진, 김갑수 and 신봉원
- programming and sound engineer:
- 홍지상
- assistant mixer:
- Erik Madrid and Christian Plata
- mixer:
- Manny Marroquin
- instruments:
- 홍지상 and J.Y. Park "The Asiansoul"
- background vocals:
- J.Y. Park "The Asiansoul" and miss A
- vocals:
- 王霏霏 , 孟佳, 민 and Suzy
- performer:
- miss A
- arranger:
- 홍지상 and J.Y. Park "The Asiansoul"
- recorded at:
- JYPE Studios in Gangdong District, Seoul, South Korea
- mixed at:
- Larrabee Studios in North Hollywood, Los Angeles, California, United States
- music videos:
- Bad Girl Good Girl by miss A
- recording of:
- Bad Girl Good Girl
- lyricist and composer:
- J.Y. Park "The Asiansoul"
| 3.75 | 3:37 |
| 2 | 딱 마주쳐 | | 3:05 |
| 3 | 다시 사랑 | | 3:26 |
| 4 | Break It | | 3:47 |
