They are the reason that he considers singing in this choir "worshipping God" and therefore as important as school.
They are also the only reason I stay at this church.
All their other music is very cool as well.
Here's another website for them: Janet and Judy
They have just finished recording a new CD of Christian music. Included will be a song of theirs they sang last Easter. It is just wonderful. I'll let you know when it's out.