Ayreon
Nightwish
Grand Magus
Yes
Lacuna Coil
Dream Theater
Toehider
Voici un nouveau récapitulatif des guests confirmés pour le prochain album de Ayreon, The Theory of Everything :
- Marco Hietala (Nightwish, Tarot)
- Keith Emerson (Emerson, Lake and Palmer)
- JB Christoffersson (Grand Magus, ex-Spiritual Beggars)
- Rick Wakeman (Yes)
- Cristina Scabbia (Lacuna Coil)
- Jordan Rudess (Dream Theater)
- Michael Mills (Toehider)
- Steve Hackett (Genesis)
- John Wetton (Asia, King Crimson)
- Sara Squadrani (Ancient Bards)
- Tommy Karevik (Kamelot, Seventh Wonder)
- Marco Hietala (Nightwish, Tarot)
- Keith Emerson (Emerson, Lake and Palmer)
- JB Christoffersson (Grand Magus, ex-Spiritual Beggars)
- Rick Wakeman (Yes)
- Cristina Scabbia (Lacuna Coil)
- Jordan Rudess (Dream Theater)
- Michael Mills (Toehider)
- Steve Hackett (Genesis)
- John Wetton (Asia, King Crimson)
- Sara Squadrani (Ancient Bards)
- Tommy Karevik (Kamelot, Seventh Wonder)
