Following up on my earlier post about Arabic choral music, ChoralNet user John Neal points me to the Tehran Vocal Ensemble:
Of course, they perform primarily in Farsi and English, not Arabic. John points to the mixed genders of the ensemble; maybe Iranian culture isn’t as oppressive as news media makes it seem?
They’ve got videos, such as: http://www.youtube.com/watch?v=xYf3OVU3pKg . The only videos I could find are these pop songs, although evidentlly they do arrangements of Bach, Rimski-Korsakoff, and Persian folk songs.