It's a bit more crazy than that.
Arjen Lucassen, like Mike Oldfield, does all music by himself, and invites various vocalists to sing for him.
His main "project" is called Ayreon. There, just about every song is different vocalist and so on.
Star One is different, it's a "heavier" project, and with a consistent lineup.
The first album had songs about various "space" movies and shows.
Set Your Controls is Dr.Who, Intergalactic Space Crusaders is Blake's 7, and so on.
(They recorded second album recently, about dystopian movies. Opening track is about The Matrix.
)
This live album has, of course, more musicians; Arjen plays guitar, but couldn't play everything else himself live at the same time.
Anyway, this live DVD, has some, not all, songs from the first studio album, and a bunch of Ayreon songs performed by the Star One lineup.
And seriously, some of the latter (Isis and Osiris, The Eyes Of Time, so on) sound BETTER than originals.
Anyway, if you're searching on YT, check (all performed by Star One, from the same DVD):
High Moon (that's a Star One song)
Songs Of The Ocean (also Star One song)
Dawn of a Million Souls (that one's Ayreon)
Into The Black Hole (also Ayreon)
Isis And Osiris (Ditto)
From there, I've found out about Ayreon itself, checked out their stuff, and loved it. A bit gentler, but still great music. Maybe you'll like it too.