как оказалось, сольных проектов у Шарон аж 25!

вот полный список песен, в которых она принимала участие:
After Forever - Beyond Me from: Prison of Desire (track 11)
Aemen - Time from: Fooly Dressed (track 01)
Aemen - Waltz from: Fooly Dressed (track 12)
Avantasia - Farewell from: The Metal Opera (track 06)
Avantasia - Into The Unknown from: The Metal Opera Pt. 2 (track 10)
Ayreon - Amazing Flight from: Into The Electric Castle, cd1 (track 03)
Ayreon - Another Time, Another Space from: Into The Electric Castle, cd2 (track 10)
Ayreon - Cosmic Fusion from: Into The Electric Castle, cd2 (track 05)
Ayreon - Isis And Osiris from: Into The Electric Castle, cd1 (track 02)
Ayreon - The Decision Tree from: Into The Electric Castle, cd1 (track 05)
Ayreon - The Garden Of Emotions from: Into The Electric Castle, cd2 (track 01)
Ayreon - Tunnel Of Light from: Into The Electric Castle, cd1 (track 06)
De Heideroosjes - Regular Day In Bosnia from: Schizo (track 08 )
De Heideroosjes - Last Call To Humanity from: Fast Forward (track 11)
De Heideroosjes- candy only live at pinkpop 2005
Eric Dikeb - Zwemmen In De Lucht
Orphanage - Behold from: Inside (track 07)
Paralysis - Architecture Of The Imagination from: Architecture Of The Imagination (track 07)
Paralysis - Fly from: Architecture Of The Imagination (track 05)
Rosemary's Sons - Shine only live
Sharon den Adel & De Laatste Show-band - Crucify (cover of a Tori Amos song)
Silicon Head - Hear from: Bash (track 06)
Timo Tolkki - Are You The One? from: Hymn To Life (track 07)
Voyage - Frozen from: Embrace (track 05)


Многое из этого можно скачать здесь: http://within-temptation.com.ru/dif/download.shtml