There most certainly is.

Check out KORG's website for EXs 90, KRONOS ASSAULT, created by me (Irish Acts). There's 3 demo tunes there to listen to. One is a song, but the other two showcase the individual sounds.
This library contains many choir, female and male sounds. In fact it's heavily driven by human voice samples. The solo sound you heard on the Pa900 is also on the Pa3X. It's one of two sounds. In EXs 90 you get many times more sounds like that, and many more complex like duet and choirs.
I recommend listening to the demo's on KORG's website where the sounds are showcased individually, but this is also worth a look. It's a video I made. All the music is from the sounds in Exs 90. You will hear a one of the female sounds featured heavily for the lead part on this at points.
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www.youtube.com/embed/4EP8m0apVjM?rel=0" frameborder="0"></iframe>
Regards
Sharp