Collaborations
- After Forever – Invisible Circles (2004), Remagine (2005), After Forever (2007); vocal coach, vocalist, producer
- Aina - Days of Rising Doom (2003); conceptualist, lyrical editor, co-writer, vocalist, vocal coach
- Andre Matos – Time to Be Free (2007), Mentalize (2009); lyrical choir, vocalist and lyrical editor
- Asrai – Touch in the Dark (2004): lyrical editor
- Avantasia – "Lost in Space Part I" (2007); "Lost in Space Part II" (2007); The Scarecrow (2008); "The Wicked Symphony" (2010); "Angel of Babylon" (2010); The Flying Opera (live album) (2011): vocalist
- The Boyscout – Blood Red Rose (2011); vocalist
- Docker's Guild – The Mystic Technocracy - Season 1: The Age of Ignorance (2012); vocalist
- Edguy – Hellfire Club (2004), Rocket Ride (2006); vocalist, lyrical editor
- Epica – The Phantom Agony (2003), We Will Take You with Us (2004), Consign to Oblivion (2005), The Road to Paradiso (2006), The Divine Conspiracy (2007), live session singer for USA Canada tour (2008), Design Your Universe (2009); vocal coach, vocalist, co-writer, producer, Requiem for the Indifferent (2012)
- HDK – System Overload (2008); vocalist, co-producer, co-writer, lyrical editor, engineer
- Kamelot – The Black Halo (2005), Ghost Opera (2007), Poetry For The Poisoned (2010); vocalist, lyrical editor
- Luca Turilli – Prophet of the Last Eclipse (2002); vocalist
- Mob Rules – Hallowed Be Thy Name (2002); vocalist
- Shaman – Ritual (2002), Reason (2005); vocalist, lyrical editor
- Virgo – Virgo (2001); worked as vocalist, lyrical editor
- Sebastien - Tears Of White Roses (2010); vocalist
- Serenity - Death & Legacy (2011); vocalist
- DesDemon - Through the Gates (2011); vocals on Into Shadow
- MaYaN - "Quarterpast" (2011); co-writer, vocals on "Symphony of Aggression"
- PelleK - Bag of Tricks (2012); vocals on Send My Message Home
- Amadeus Awad – The Book Of Gates (2013); Vocalist
Read more about this topic: Amanda Somerville