Saw this video being shared around in the social media, ostensibly a performance by Canadian children to welcome Syrian refugees' arrival to Canada. I recognized the song as the Islamic song Tala' al Badru 'Alayna. According to Wikipedia it was historically sung on Prophet Muhammad's arrival at Medina after a battle.
However the video only show a group of singers, without any meaningful context. For example, was the video really in Canada? Was it as part of welcoming the Syrian refugees, or just a generic Arabic culture performance?