Shelly Peiken , Arnthor Birgisson, Wayne Hector Guy Sigsworth 3:53 4. " Kill the Lights " Nathaniel Hills, James Washington , Luke Boyd, Marcella Araica Danja 3:59 5. " Shattered Glass " Gottwald, Kelly, Levin Dr. Luke, Benny Blanco 2:52 6. " If U Seek Amy " Max Martin , Shellback