Fall Out Boy's third album takes the band’s ebullient, hooky emo-punk to bold, brash new levels. The theatrical "This Ain't a Scene, It's an Arms Race" veers between scruffy funk grooves and rowdy exhortations, while the glammy punk-pogo "Thnks Fr Th Mmrs" boasts quivering strings and a dash of flamenco guitar. Even the record's more straightforward, rock-oriented highlights—like the wiry "Hum Hallelujah", or the high-stepping mosh-starter "Fame < Infamy"—explode with all the confidence of a band who know they’ve hit their stride.