| 2021-07-23 |  I Don't Know @ Sony Music Entertainment @ 2021-07-02 | 1 | Dance / Electro Pop | Formalize - I Don't Know (Original Mix)3:30 | |
| 2021-07-23 | I Don't Know @ Sony Music Entertainment @ 2021-07-02 | 2 | Dance / Electro Pop | Formalize - I Don't Know (Extended Mix)4:09 | |