[Photo by: Travis Shinn]

Before there was Lamb Of God, there was Burn The Priest. 

And Burn The Priest have found the coolest way for fans to hear the preview of a new track.

Read more: Lamb Of God return to roots for new Burn The Priest album

Last month, Burn The Priest revealed their full-lenght album, Legion: XX, will be out May 18. The record features covers of artists that inspired them to form the band over twenty years ago. 

“Our inauspicious beginnings somehow grew into something none of us had ever even imagined possible, let alone aspired to, however, this is the story of Burn The Priest,” guitarist Mark Morton explains. 

Along with the announcement, the band shared a music video for the Accüsed cover “Inherit The Earth.”

Now, the band are about to drop another song, a cover of Big Black's “Kerosene.” The song will only be out on Friday, April 27, but there's a way for fans to hear it before the drop.

A poster on Lamb Of God's Facebook instructs readers to call a certain number for more information—and, yes, we're going to tell you to do it.

By calling the number, you get a message from Burn The Priest… and a preview of the new track. Seriously.

We couldn't believe it either, but you should definitely give it a try!

Watch More: APTV Interviews: LAMB OF GOD (2016)