# | Track | Artist | Key | Camelot | BPM | |
---|---|---|---|---|---|---|
1 | U - Japanese Version | KNK | E Minor | 9A | 138 | |
2 | BACK AGAIN - Japanese Version | KNK | B♭ Minor | 3A | 128 | |
3 | U - Korean Version / 2017 Remastered | KNK | E Minor | 9A | 138 | |
4 | BACK AGAIN - Korean Version / 2017 Remastered | KNK | D♭ Major | 3B | 128 |