專輯：世紀大崩解 (21st Century Breakdown) 歌曲：Know Your Enemy (頭號天敵) Do you know the enemy Do you know your enemy Well gotta know the enemy Do you know the enemy Do you know your enemy Well gotta know the enemy Do you know the enemy Do you know your enemy Well gotta know the enemy Violence is an enemy Against the enemy Violence is an energy Bringing on the fury The choir infantry Revolt against the honor to obey Overthrow the effigy The vast majority Burning down the foreman of control Silence is the enemy Against your urgency So rally up the demons of your soul Do you know the enemy Do you know your enemy Well gotta know the enemy Do you know the enemy Do you know your enemy Well gotta know the enemy The insurgency will rise When the bloods been sacrificed Don't be blinded by the lies In your eyes Violence is an energy From here to eternity Violence is an energy Silence is the enemy So gimme gimme revolution Do you know the enemy Do you know your enemy Well gotta know the enemy Do you know the enemy Do you know your enemy Well gotta know the enemy Do you know the enemy Do you know your enemy Well gotta know the enemy Overthrow the effigy The vast majority Burning down the foreman of control Silence is the enemy Against your urgency So rally up the demons of your soul