| Official |
|---|
| 1.1 | Happy Ending (The LA edit) | ?:?? | MIKA | Happy Ending | MIKA | Single | | Casablanca | 174 914 4 |
| 1.1 | Happy Ending (The LA edit) | 3:33 | MIKA | Happy Ending | MIKA | Single | - XE2007-10-15
- GB2007-10-15
- AU2007
| Casablanca | 174 914 3 |
| 1.1 | Happy Ending (The LA edit) | 3:33 | MIKA | Happy Ending | MIKA | Single | | Island | |
| 2.1 | Happy Ending | 3:32 | MIKA | Essential Songs 2008 | Various Artists | Album + Compilation | | Universal Music TV | 8823713 |
| 1.3 | Happy Ending (The LA edit) | ?:?? | MIKA | Happy Ending | MIKA | Single | | Time Records | TIME 493 |
| 1.1 | Happy Ending (radio edit) | 3:32 | MIKA | Happy Ending | MIKA | Single | | Casablanca | MIKACD007 |
| 1.1 | Happy Ending (The LA edit) | 3:35 | MIKA | Happy Ending | MIKA | Single | | Casablanca | 175 443 2 |
| 1.4 | Happy Ending (La edit) | 3:34 | MIKA | Liebe ist... Volume 5 | Various Artists | Album + Compilation | | | |
| 1.8 | Happy Ending | 3:33 | MIKA | Bravo Hits 60 | Various Artists | Album + Compilation | | Polystar | 88697 17018 2 |
| 1.4 | Happy Ending | ?:?? | MIKA | Striscia la compilation 2008 | Various Artists | Album + Compilation | | Universal | |
| 2.4 | Happy Ending | 3:33 | MIKA | Now That’s What I Call Music! 69 | Various Artists | Album + Compilation | | NOW | 50999 2 07455 2 3, CDNOW69 |
| 1.20 | Happy Ending | 3:31 | MIKA | Liga Hitów Radia ZET | Various Artists | Album + Compilation | | Magic Records | 530 770 9 |
| 1.9 | Happy Ending | 3:35 | MIKA | Radio 538: Hitzone 45 | Various Artists | Album + Compilation | | Sony BMG Music Entertainment | 88697279172 |
| 1.8 | Happy Ending | 3:33 | MIKA | Bravo Hits 60 | Various Artists | Album + Compilation | | Polystar , Sony BMG Music Entertainment | 88697 22770 2 |
| 1.8 | Happy Ending | 3:33 | MIKA | Bravo Hits 60 | Various Artists | Album + Compilation | | Bertelsmann Club, Polystar , Sony BMG Music Entertainment | 445122 |
| 1.6 | Happy Ending | 3:33 | MIKA | Real Love | Various Artists | Album + Compilation | | Universal Music TV | 8823859 |
| 2.20 | Happy Ending | 3:32 | MIKA | 40X Love | Various Artists | Album + Compilation | | Universal Music | 533 685-6 |
| 5.19 | Happy Ending | 3:33 | MIKA | 100x Liefde 2012 | Various Artists | Album + Compilation | | Universal Music Group | |
| 6.1 | Happy Ending | 3:35 | MIKA | Het beste uit de Qmusic top 500 van de 00’s | Various Artists | Album + Compilation | | Sony Music | |
| 1.15 | Happy Ending (LA edit) | 3:32 | MIKA | Songbook vol. 1 | MIKA | Album + Compilation | | Casablanca Records | 00602537614967 |
| 1.15 | Happy Ending (LA edit) | 3:32 | MIKA | Songbook, Volume 1 | MIKA | Album + Compilation | | Casablanca | |
| 1.21 | Happy Ending (LA edit) | 3:33 | MIKA | Don’t Worry Be Happy | Various Artists | Album + Compilation | | | |