| Official |
|---|
| 1.6 | I Believe | 3:18 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:18 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:19 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:19 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:19 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.1 | I Believe | 3:18 | Simian Mobile Disco | I Believe | |
| 1.6 | I Believe | 3:17 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:16 | Simian Mobile Disco | Attack Decay Sustain Release | - 2007-09-11 CA
- 2007-09-11 US
|
| 1.6 | I Believe | 3:19 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.6 | I Believe | 3:16 | Simian Mobile Disco | Attack Decay Sustain Release | |
| 1.37 | I Believe | 3:18 | Simian Mobile Disco | FIFA 08 Soundtrack | |
| 2.1 | I Believe | 3:17 | Simian Mobile Disco | Hed Kandi: Kandi Lounge | |
| 1.18 | I Believe | 3:17 | Simian Mobile Disco | LateNightTales: Arctic Monkeys | |
| 1.19 | I Believe | 3:17 | Simian Mobile Disco | LateNightTales: Matt Helders | |
| 1.18 | I Believe | 3:17 | Simian Mobile Disco | LateNightTales: Arctic Monkeys | |
| Promotion |
|---|
| 1.2 | I Believe | 3:18 | Simian Mobile Disco | Sonically Speaking, Volume 34: April 2007 | |