| 2022-11-25 |  Down Under @ V.A.A. & MUSIC PRODUCTION AB @ 2022-11-25 | 1 | Tech House | Katja - Down Under (Original Mix)6:00 | |
| 2022-09-09 |  Stay a Little While @ V.A.A. & MUSIC PRODUCTION AB @ 2022-09-09 | 1 | House | Katja - Stay a Little While (Original Mix)4:58 | |
| 2021-09-09 |  Believe @ V.A.A. & MUSIC PRODUCTION AB @ 2021-09-09 | 1 | House | Katja - Believe (Original Mix)2:54 | |