text:  <unk> was first digitally released in some South American countries on 23 September 2011 as a special edition , dubbed the <unk> Sur Edition . This version included a different mix of " <unk> " . On 30 September , the digital download for the standard edition of the album was released in several Latin American and European countries . On 4 October , the album was officially released as a digital download and compact disc in most of these same markets as well as North America ; an iTunes edition was released as a digital download on the iTunes music store . This version included an album @-@ only video , entitled " <unk> " . In Germany , the album was first available on the <unk> label on 4 October and on 11 October through Warner Music . In Canada and Spain , the compact @-@ disc version of the album was available on 25 October . 
  