Emo sensation Fall Out Boy blew the roof off Los Angeles' famed Roxy Theatre for an exclusive AOL Music LIVE concert Saturday night. Pete Wentz & co. played songs from their brand-new album, 'Infinity on High,' including their infectious new single, 'This Ain't a Scene, it's an Arms Race.' And never to disappoint their longtime fans, they also belted old favorites 'Dance Dance,' 'Sugar We're Going Down,' and other favorites from their platinum-selling 2005 album 'From Under the Cork Tree.' 
AOL Music is the only place you can watch the show, as we bring you the exclusive broadcast on-demand. Watch the electric performance, then leave your comments below to let us know what you thought of the show!
