Arcade Fire are headlining Primavera Sound on Saturday night, but today they set up a 360-degree stage in the middle of the fest in order to perform a warm-up show for their set. The performance will coincide with the official release of their brand-new single “Everything Now,” which surfaced yesterday after they started selling a 12″ of it at their merch table. Here’s a setlist for the show. In addition to “Everything Now,” it also includes a new unheard song called “Creature Comfort”:

Spolier!

Tonight's setlist. New unheard of song "Creature Comfort" on it.

Thanks @mihai_o pic.twitter.com/gFHClDUcOO

— Arcade Fire tube 🌐 (@ArcadeFiretube) June 1, 2017

Here’s what the stage looks like:

#Barcelona
Warm-up. Crowd steered to different sides for the the 360 thing.

Photos: @indiescabreados + @TooManyBlogs
Info: @thegreathobini pic.twitter.com/NLxiiGgKi9

— Arcade Fire tube 🌐 (@ArcadeFiretube) June 1, 2017

Earlier today, the band launched a website featuring a “livestream” from Death Valley. It’s possible the website could contain a livestream of the surprise performance, but it’s still too early to tell. “Everything Now” is set to make its official debut on BBC Radio 1 at 2:30PM EST.