This is one of my all-time favourite songs, and favourite intros:
[video]http://www.youtube.com/watch?v=4gpNqB4dnT4&sns=em[/video]
From 1977, Crazy On You, by Heart
And I can’t begin to express how much I love this; a short intro into one of the great rock songs:
[video]http://www.youtube.com/watch?v=s88r_q7oufE&sns=em[/video]
No One Knows, by QUOTSA