A screenshot showing the group gathered by The Koolulam Project to sing “Believer.” Photo: Screenshot.

The American rock band Imagine Dragons shared on Facebook on Monday a video of 600 Israelis, including 50 with special needs, who gathered to cover one of its popular songs.

The almost five minute-long video shows the group of Israelis, from all backgrounds and ages, singing a tune called “Believer,” while holding scripts in their hands and facing a stage where musicians played instruments. Imagine Dragons wrote in the video’s caption, “this 600 person choir singing ‘Believer’ blew my mind this morning as I watched. So much passion.”

The clip was originally uploaded onto Facebook by the Koolulam Project, an Israel-based initiative that also organized the event. Koolulam Project invited 600 people who did not know each other to the Bascula arts center in Tel Aviv on Dec. 10 to sing together as a way to kickoff the annual international billboard of Israel’s Galgalatz radio station. It took about an hour to teach the group the song.

The Koolulam Project describes itself on Facebook as a “social-musical initiative aimed at bringing together people from all corners of the diverse, multi-cultural Israeli society. Our idea is to stop everything for a few hours and just sing – together. The project enables its participants to enjoy the feeling of togetherness through a deep communal experience — our sounds and voices coming together to create a social choir, full of hope and optimism.”

Watch the group sing a cover of “Believer” below: