> I read somewhere that all the female vocals on the album (Now we are
> free, Elysium, and i think sorrow) are all done by the second composer
> Lisa Gerrard!
Correct. Those songs are fairly typical of her work, although a bit more 'pop'
than her own material tends to be.
> She's a recording artist herself so this could be true. She
> has an amazing voice! Does anyone know her background and/or where she is
She's earlier been vocalist/composer in This Mortal Coil and Dead Can Dance, plus a couple of cooperations with various other groups. She's made two solo CD's which you'll probably like if you liked what she did on Gladiator. You can do worse than trying some of the Dead Can Dance CD's as well - my personal favorites are Aion and Within the realm of a dying sun.
You may also want to check out The Insider soundtrack, where she cooperated with Pieter Bourke.
And yes, she's got an amazingly warm and personal voice. Personally, though, I hope Lisa gets to work with Mark Morgan or Craig Armstrong rather than Hans Zimmer in the future.