Mikael does vocals on the sixth Ayreon album "The Human Equasion. 
He appears as "Fear" on tracks:
"Day Two: Isolation", (also available as cd-single),
"Day Five: Voices",
"Day Six: Childhood" ,
"Day Eight: School",
"Day Eleven: Love",
"Day Twelve: Trauma",
"Day Fifteen: Betrayal",
"Day Eighteen: Realization" ,
"Day Twenty: Confrontation" , (also available as cd-single).
On the dvd which was included in a few variants Mikael appears in the "making of" footage.