This is made up of two songs, "Mass Hysteria" and "Modern World." Vocalist and chief songwriter Billie Joe Armstrong explained to Q magazine May 2009: "It swirls all the information that's going on in the record around in an emotional blender. At the end it's going to sound like a wall of TV screens. It's sensory overload."
Green Day were recording the drums for this two-part song on election night in November 2009, when Barack Obama was elected president. Drummer Tré Cool recalled to Q magazine May 2009: "It was pretty insane. We were running in and telling Butch (Vig, producer), Yeah, we got another state!" Cool added that the song title is "kind of fitting, especially if Obama would have lost. We'd be busy trying to start a revolution if McCain had won."