Memorable song intros

[SimuLord]

Throwing in a few more, I'll add Voodoo Child (either Hendrix or Vaughn's version), Dirty Water by the Standells (anyone from Boston perks up instantly when they hear it), and Dirty Deeds Done Dirt Cheap (although really, AC/DC has made their whole career on catchy, instantly recognizable intros).

 

[MRMIdAS2k]

Def Leppard - White Lightning.
http://www.youtube.com/watch?v=jgOVIqFoKj0

 

[PureChaos]

Eye of the Tiger

 

[The Eaten Cake]

I've got to say One by Metallica as well. Especially the S&M version.

 

[k3v1n]

The Doors- The End

the doors-Riders on the Storm

 

[sirdanrhodes]

Slipknot - Everything ends.

Not saying how it starts, I will get in trouble with the mods!

 

[nolongerhere]

Wake Up - Rage Against The Machine
Handlebars - Flobots
Both completely different, but both great intros and songs.

Edit.
Also add Ace of Spades by Motorhead

 

[jezz8me]

Blue Monday by New Order. The amount of times i hear that drum beat when bands do the sound check on the bass drum no matter what sort of music they are playing.