| 官方 |
|---|
| 1.2 | So Hard (single) | 4:01 | Pet Shop Boys | So Hard | |
| 1.1 | So Hard | 4:03 | Pet Shop Boys | So Hard | |
| 1.2 | So Hard (single) | 4:01 | Pet Shop Boys | So Hard | |
| 1.1 | So Hard | 4:03 | Pet Shop Boys | So Hard | |
| 1.1 | So Hard | 4:03 | Pet Shop Boys | So Hard | |
| 1.1 | So Hard | 4:03 | Pet Shop Boys | So Hard | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:58 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:58 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behavior | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 2.1 | So Hard | 4:00 | Pet Shop Boys | Now That’s What I Call Music! 18 | |
| 2.1 | So Hard | 4:01 | Pet Shop Boys | Now! That’s What I Call Music 18 | |
| 2.1 | So Hard | 4:00 | Pet Shop Boys | Now! That’s What I Call Music 18 | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 2.1 | So Hard | 4:00 | Pet Shop Boys | Formel Eins: Cool Fun! | |
| 1.2 | So Hard (single) | 3:56 | Pet Shop Boys | So Hard | |
| 1.13 | So Hard | 3:59 | Pet Shop Boys | The Hits Album 90 Volume 2 | |
| 1.13 | So Hard | 4:03 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | - 1991-11-04 XE
- 1991-11-04 GB
|
| 2.4 | So Hard | 3:59 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:00 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:00 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour / Further Listening 1990-1991 | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour / Further Listening 1990–1991 | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | ?:?? | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | ?:?? | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:58 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 1.13 | So Hard | 3:59 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour / Further Listening 1990 - 1991 | |
| 1.7 | So Hard | 3:59 | Pet Shop Boys | Behaviour / Further Listening 1990–1991 | |
| 1.7 | So Hard (2018 remaster) | 3:58 | Pet Shop Boys | Behaviour / Further Listening 1990 - 1991 | |
| 4.1 | So Hard | 3:59 | Pet Shop Boys | NOW Yearbook ’90 | |
| 3.1 | So Hard | ?:?? | Pet Shop Boys | NOW Yearbook 1990 | |
| 4.1 | So Hard | 4:00 | Pet Shop Boys | NOW Yearbook 1990 | |
| 2.1 | So Hard | 4:00 | Pet Shop Boys | Now That’s What I Call Music! 18 | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:00 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 1.13 | So Hard | 4:01 | Pet Shop Boys | Discography: The Complete Singles Collection | |
| 2.8 | So Hard | 3:59 | Pet Shop Boys | PopArt: The Hits | |
| 推广 |
|---|
| 1.1 | So Hard (7" mix) | 4:02 | Pet Shop Boys | So Hard | |
| 1.7 | So Hard | 3:58 | Pet Shop Boys | Pet Shop Boys | |
| 1.1 | So Hard (7" mix) | 4:02 | Pet Shop Boys | So Hard | |
| 非法制作 |
|---|
| 1.4 | So Hard | 4:02 | Pet Shop Boys | Best Of | |
