A group of 1,500 singers stand in an abandoned power station and sing a powerful version of “Hallelujah” that you’ve never heard before.

The concert begins with the choir harmonizing nicely with American vocalist Rufus Wainwright.

The vocals are eerie, as the famous words reverberate around the building, creating stunning, spine-tingling natural acoustics.

Even though this is possibly the largest choir you’ll ever witness, they all manage to stay exactly in time, and as the song progresses from the bridge to the chorus, they provide a skillfully augmented performance that elevates Leonard Cohen’s masterpiece to new heights.

Watch a video about The Music Man below.