Breadcrumb
The audience's reaction of both surprise and amusement testified to the poignancy of the latest in a series of multi-faith projects in a region wrecked by confessional and sectarian strife.
Rami Al Khal, who was present at the service, told The New Arab the performance was touching.
"It was so moving that I think we all got goosebumps," Al Khal said, "No one expected this wonderful set up. It was so amazing.
"The veiled girls were very serene in their singing - their performance was heavenly."
Reaction on social media was similarly palatable as users commended the efforts to signify co-existence.
"Just beautiful. The Spirit of Christmas is just beautiful. No difference between humans. We are all equal," one user said.
"What a beautiful way to deliver the message of Christmas," another user said.
"I hope the world can watch this and learn a lesson from Lebanon," another said.
The Imam Sadr Foundation is an NGO that works to bring about social justice based on the teachings of late Shia cleric Moussa al-Sadr.