Edited sentence: "Swear to shake it up if you sware to listen" means their music will keep getting better (which, is impossible, they're the best."We're still so young, desperate for attention" they're young.) as the CD goes on.THIS SONG IS ABOUT their first song on their album A Fever You Can't Sweat Out.so they started a band.that's basically what the song is about.they need attention.they want you to sit down (or dance) and listen to their music and enjoy it and it will keep getting better as the clock ticks.they're new.this is one of my favorite songs