| Name | Year |
|---|
| À Tout Le Monde [Set Me Free] ft. Cristina Scabbia | 2007 |
| The Theory of Everything, Pt. 2 ft. Cristina Scabbia | 2013 |
| Watch Over You ft. Cristina Scabbia | 2007 |
| Feliz Navidad ft. Sharon den Adel, Doro, Joe Lynn Turner | 2017 |
| Diagnosis ft. John Wetton, Cristina Scabbia, Rick Wakeman | 2013 |
| The Prodigy's World ft. Cristina Scabbia, Tommy Karevik | 2013 |
| Monster ft. Cristina Scabbia | 2019 |
| À tout le monde (Set Me Free) ft. Cristina Scabbia | 2007 |
| The Argument 1 ft. Cristina Scabbia | 2013 |
| The Theory of Everything, Pt. 3 ft. Cristina Scabbia | 2013 |
| The Argument 2 ft. Cristina Scabbia | 2013 |
| The Prediction ft. Cristina Scabbia | 2013 |
| Mirror Of Dreams ft. Cristina Scabbia | 2013 |
| The Parting ft. Cristina Scabbia, Steve Hackett | 2013 |
| Scars ft. Cristina Scabbia, Mark Osegueda | 2015 |
| Wild Woman ft. Danko Jones | 2016 |
