1 Year
AlbumTracklist 41:28
| 1 | Chatter (Problem Girl inst) | 1:27 | |
| 2 | Problem Girl 2lson feat. 나경원 & 딘딘 | 3:58 | |
| 3 | 하루 같은 일년 2lson feat. Babylon & 니화 | 3:34 | |
| 4 | Feel the Air 2lson feat. 봉구 & Evo | 3:10 | |
| 5 | Back In Love (Instrumental) | 0:52 | |
| 6 | Love Goodbye 2lson feat. 계범주 | 4:32 | |
| 7 | This Song 2lson feat. LE | 3:21 | |
| 8 | I'm In Love 2lson feat. Ailee | 4:21 | |
| 9 | 거리에서 2lson feat. 문명진 | 4:23 | |
| 10 | 끝 2lson feat. Jo Hyun Ah & 기리보이 | 4:17 | |
| 11 | Stay With Me 2lson feat. 강민희 & Evo | 3:48 | |
| 12 | 멈춰진 2lson feat. KATE | 3:40 |