Turn away if you're trying to avoid spoilers, like the fact that U2 has rehearsed a song from How To Dismantle An Atomic Bomb that they've never played in concert. Steven Traxler posted the audio below on YouTube this morning, which is presumably from last night's rehearsals. It features the band doing an angry version of "Bullet The Blue Sky" followed by "One Step Closer." It also includes a few four-letter words from Bono, so fair warning on that.

"Bullet The Blue Sky" hasn't been played in concert since December 9, 2006 -- the last show of the Vertigo tour. "One Step Closer" has never been played in concert.

There's a long-running thread in our forum talking about all the songs U2 has rehearsed so far. You can pick up the discussion here, or go straight to today's conversation about this new audio.