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Disc1
| 1 | Once in a Lifetime (extended version) | Gregorian feat. Sisters of Oz | 5:25 |
| 2 | Once in a Lifetime (L.A. mix) | Gregorian feat. Sisters of Oz | 6:12 |
| 3 | Once in a Lifetime | Gregorian feat. Sisters of Oz | 3:45 |
| 1 | Once in a Lifetime (extended version) | Gregorian feat. Sisters of Oz | 5:25 |
| 2 | Once in a Lifetime (L.A. mix) | Gregorian feat. Sisters of Oz | 6:12 |
| 3 | Once in a Lifetime | Gregorian feat. Sisters of Oz | 3:45 |