Best Song Intro

Just curious on what songs' intro really floats your boat. I got the idea today for this thread listening to my iPod when "It's A Long Way There" by The Little River Band started up. It starts out with some symphony, adds GREAT vocal harmonies, then cool rhythm guitar, followed by some cool electric riffs and chicken pickin' harmonics. Love it. And I'm not really a huge LRB fan.

So whatcha' all like?
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Best Ted Nuggent into: Free for All...
Hard Day's night - you know what it is instantly, and it took decades for people to figure out how they did it (guitar and piano). Not necessarily a great musically, but distinctive.
A third vote for Lou Reed Live-"Sweet immediately popped into my head when I read the thread, and where I was at the first time I heard it.
"I Will Possess Your Heart" by Death Cab For Cutie.
Led Zep - Immigrant Song