{{Singel infobox
|
okładka = [http://upload.wikimedia.org/wikipedia/en/8/8b/Iron_Maiden_-_Different_World.jpg okładka wersji CD]<br />[http://upload.wikimedia.org/wikipedia/en/5/5f/IronMaidenDifferentWorldDVD.jpg okładka wersji DVD]<br />[http://upload.wikimedia.org/wikipedia/en/2/20/IronMaidenDifferentWorld7inch.jpg płyta obrazkowa]
|wykonawca = Iron Maiden
|tytuł = Different World
|z albumu = A Matter of Life and Death
|wydany = USA)</small><br />26 grudnia 2006
|nagrany = 2006
|format = CD, płyta obrazkowa
|gatunek = heavy metal
|długość = 04:17
|wytwórnia_płytowa = EMI
|producent = Kevin Shirley
|poprzedni_singel = The Reincarnation of Benjamin Breeg
|poprzedni_singel_rok = 2006
|rok_wydania = 2006
|następny_singel =
|następny_singel_rok =
|pozycje =
|poprzedni_utwór =
|poprzedni_utwór_nr =
|tytuł_nr = 1
|następny_utwór = These Colours Don't Run
|następny_utwór_nr = 2
}}

'''"Different World"''' – singel zespołu heavymetalowego Adrian Smith oraz Steve Harris. "Different World" jest jedynym utworem na płycie utrzymanym w stylu wypracowanym przez zespół w latach osiemdziesiątych. Niestety, jest też jedynym utworem niepasującym do progresywnej konwencji albumu, na którym dominują długie i bardzo skomplikowane utwory. Z drugiej strony jednak sprawdza się jako szybki i mocny numer na otwarcie albumu.

{{CytatD|Gdy utwór został skończony i posłuchaliśmy go, pomyśleliśmy: Phila Lynotta.(...) Od razu wiedziałem, że będzie to dobra rzecz na singel.
|magazyn [[Kerrang!|width=50%}}

== Lista utwórów ==
===Wydanie amerykańskie CD===
# "Different World" (Adrian Smith, Steve Harris) – 4:15
# "Hallowed Be Thy Name (Radio 1 'Legends' Session)" (Steve Harris) – 7:13
# "The Trooper (Radio 1 'Legends' Session)" (Steve Harris) – 3:56

===Wydanie cyfrowe===
Ścieżka "Different World" została nagrana w Aalborgu 9 listopada 2006. Wywiad z liderem Iron Maiden był dostępny jedynie w przypadku złożenia przed 26 grudnia 2006 zamówienia na [http://ironmaiden.com oficjalnej stronie grupy].

# "Different World (live)" (Adrian Smith, Steve Harris) – 4:15
# Wywiad ze Steve'em Harrisem nt. albumu A Matter of Life and Death – 10:38

===Wydanie europejskie CD===
Utwór "Iron Maiden" (ang. ''żelazna dziewica'') pochodzi pierwotnie z albumu o tym samym tytule. Nagranie zostało wykonane w Kopenhadze 10 listopada 2006.

# "Different World" (Adrian Smith, Steve Harris) – 4:15
# "Iron Maiden (live)" (Steve Harris) – 5:40

{{Infobox Single |
| Name           = Different World
| Cover          = MaidenWorld.jpg
| Artist         = Iron Maiden
| from Album     = A Matter of Life and Death
| B-side         = '''US CD single'''<br />"Hallowed Be Thy Name (Radio 1 Legends Session)", "The Trooper (Radio 1 Legends Session)"<br />'''European CD single'''<br />"Iron Maiden (live)"<br />'''European DVD single'''<br />"The Reincarnation of Benjamin Breeg (live)", "Hocus Pocus (Focus cover)"<br />'''European 7" picture disc'''<br />"Fear of the Dark (live)" 
| Released       = November 14 2006 <small>(US)</small><br />December 26 2006 <small>(UK)</small>
| Format         = CD, DVD, 7" picture disc
| Recorded       = Sarm West Studios, London in 2006
| Genre          = Heavy metal
| Length         = 4:17
| Label          = EMI / Sanctuary Records
| Writer         = Steve Harris
| Producer       = Kevin Shirley
| Chart position = * #1 <small>(Finland) 
*</small>#1 <small>(Spain)
*</small>#3 <small>(UK)</small>
* #8 <small>(US Mainstream Rock)</small>
| Last single    = "The Reincarnation of Benjamin Breeg"<br />(2006)
| This single    = "'''Different World'''"<br />(2006)
| Misc           = {{Extra album cover 2
  | Upper caption  = Alternate cover
  | Type           = Single
  | Cover          = IronMaidenDifferentWorldDVD.jpg
  | Lower caption  = DVD single cover
  }}
  {{Extra album cover 2
  | Upper caption  = Alternate cover
  | Type           = Single
  | Cover          = IronMaidenDifferentWorld7inch.jpg
  | Lower caption  = 7" single
  }}
}}

"'''Different World'''" is the first track from English A Matter of Life and Death''. The song is also the second single from the album, released on November 14 2006 in the United States, and December 26 2006 in Europe. The song has been stated by the band to be a tribute to Thin Lizzy due to the low sounding melodies sung by Bruce Dickinson that are reminiscent of those Phil Lynott would sing.

The song is featured in the skateboarding video game ''Tony Hawk's Downhill Jam''.

The all-female tribute band The Root of All Evil''.

==Music Video==
Two music videos of "Different World" were released. In the first, a computer animated version of Dickinson is watching a factory of drones reorganizing test tubes. When one appears with a purple liquid in it, he takes the tube and runs. He is chased by more drones across an extremely high-up walkway, before leaping off the platform, and later through a garbage disposal shoot. He exits the shoot at high speed, and tries to grab hold of it but eventually falls. He lands on a zeppelin, and is grabbed by a drone. The drone carries him through the air before crashing into the ground, after which Bruce runs through the city to a woman who shows him a different world. In this vision, a young version of Bruce (who looks more like him than the older one) takes the test tube and throws it at the screen. The vision explodes and a giant Eddie stands up and begins to destroy the city. The camera zooms out, and a larger Eddie is revealed to be holding the planet, and throws it at the screen, ending the video.<ref>[http://www.youtube.com/watch?v=X7PPxYZG8Lo YouTube - Iron Maiden - Different World (Animated Version)<!-- Bot generated title -->]</ref>

The second version features the band recording the song in studio 1 of Sarm Studios, West London, UK. Portions of this video appear on the first version. <ref>[http://www.youtube.com/watch?v=EgLuMQnnBKs YouTube - Iron Maiden - Different World<!-- Bot generated title -->]</ref>

== Track listings ==
=== US CD single ===
# "Different World" (Adrian Smith, Steve Harris) – 4:15
# "Hallowed Be Thy Name (Radio 1 'Legends' Session)" (Harris) – 7:13
# "The Trooper (Radio 1 'Legends' Session)" (Harris) – 3:56

=== Digital single ===
The interview with Steve Harris was only available if pre-ordered before December 26, 2006 through the [http://ironmaiden.com Iron Maiden website].
# "Different World" (Recorded live in Aalborg on the ''A Matter of Life and Death'' tour, November 9, 2006) (Smith, Harris) – 4:15
# Interview with Steve Harris on ''A Matter of Life and Death'' – 10:38

=== European CD single ===
# "Different World" (Smith, Harris) – 4:15
# "Iron Maiden" (Recorded live in Copenhagen on the ''A Matter of Life and Death'' tour, November 10, 2006) (Harris) – 5:40