Seven million people have enjoyed this, so we thought we’d share it with you.

The idea by a Philadelphia opera company was to just show up at a department store with 600 friends from choirs, chorus, even school music classes… and everybody sing the Hallelujah Chorus.

What is incredible is the crowd’s reaction. Notice — the official singers are all wearing round, brown name tags. Watch how many of the people joining in enthusiastically are wearing no name tags — just ordinary shoppers, enjoying singing praises to to the King of Kings!

Hallelujah!