immigrant song is led zep 3
or second casstette in remasters if you prefer
“Box of Rain” from American Beauty by the Grateful Dead
Here are some nominees:
Where the Streets Have No Name - U2 - Joshua Tree
Airbag - Radiohead - OK Computer
2+2=5 - Radiohead - Hail to The Theif (I know its really new but a great opening song)
Aces High - Iron Maiden - Powerslave
Back In The USSR - Beatles - White Album
What Kantalooppi said. Obviously. 
Radio Free Europe from Murmur - R.E.M.
Oh yeah , and:
Sympathy for the Devil - Beggar’s Banquet - Rolling Stones
Also:
Gimme Shelter - Let It Bleed - Rolling Stones
(Come to think of it, that may be my top pick.)
BND from the first No Doubt album.
Yeah, that’s right. No Doubt. Youse got a problem?
“Blackened” from Justice by Metallica
“If I Should Fall From Grace With God” from IISFFGWG by the Pogues
“Aces High” from Powerslave by Iron Maiden
Funny, this was going to be my top pick, I remembered Gimme Shelter as being the first track on Let It Bleed. But when I googled the CD, Shelter was listed as track 4.
Just checked my old vinyl album–Gimme Shelter is the first track.
Opening tracks don’t get much better than Gimme Shelter.
“London Calling” from London Calling by the Clash
“Janie Jones” from The Clash (UK) by the Clash
“Song Against Sex” from On Avery Island by Neutral Milk Hotel
“Pink Moon” from Pink Moon by Nick Drake
“Blister in the Sun” from Violent Femmes by Violent Femmes
“This Angry Silence” from …And Don’t the Kids Just Love It by the Television Personalities
“Call Me” from Throwing Muses by Throwing Muses
“Love Comes to Town” from Talking Heads 77 by Talking Heads
“Teen Age Riot” from Daydream Nation by Sonic Youth
Sorry, the full title should be “Uh-oh, Love Comes to Town”
Only Shallow from Loveless by My Bloody Valentine
I used to love how Elton John’s "Good bye Yellow brick Road " opened with “Funeral for a Friend/Love Lies Bleeding”.
Also I liked “Black Dog” on Led Zeppelin IV.
I like “The Hellion” on Judas Priest’s Screaming for Vengeance CD. Great prelude to “Electric Eye.”
“Blitzkrieg Bop” from the Ramones’ first album.
hellfire leonard!
im forgetting back in black off
duh, back in black by AC/DC
altogether now t t t t t t dun!dededeh! dedede!
dediddlydiddlydilow!
the bit i cant play on geetar
I win:
Shine on you crazy diamond - Pink Floyd (Wish you were here)
Yours is no Disgrace from The Yes Album.
2112:Overture from 2112 by Rush.
School from Crime of the Century by Supertramp.
Astronomy Domine from Piper at the Gates of Dawn by Pink Floyd.
Fuck Yeah! 
Purple Haze from “Are You Experienced” by the Jimi Hendrix Experience. I’m talking about the 1967 US release of the album (apparently it wasn’t on the UK release. What WERE they thinking??:smack: ). Talk about an announcement that something new was in town!