It's been three long years for Green Day fans, but the long wait is over. Billie Joe Armstrong and crew have announced their latest tour, which will be promoting their upcoming album, 21st Century Breakdown. It's been five years since Green Day released their last album, American Idiot, and they've tapped uber-producer Butch Vig to help shape their sound. Hit the jump to hear their latest single Know Your Enemy (which is not a remake of the Rage Against The Machine song in case you were wondering). The venue and ticket pricing has not been announced yet, so stay tuned to Crossfade for information as it becomes available.