Songfacts®:

• Green Day open their ninth studio album with this song about social problems that threaten, "the death of the nuclear family," a subject that could have ended up on either of the band's previous two sets. "Can you hear the sound coming over the hill?," warns Billie Joe Armstrong . "Gotta move my feet, it's coming in for the kill. Ba-baby, baby it's a blow out, oh yeah. Like a nuclear bomb and it won't be long 'til I detonate."
• Armstrong told Rolling Stone that for !Uno! the band moved away from the grandiose sound they explored on American Idiot and 21st Century Breakdown in favor of leaner rock. "The last two records were studio albums. This one, we started rehearsing every day, constructing these songs together," he said. "It felt like we were all in a room jamming... everyone in the mix, throwing out ideas. If you listen to it, it feels grand. But it also feels like a garage band."