hmmm, well, my favorite would be either Us and Them, Shine on you crazy diamond, or Hey you..... But as far as popularity from the masses, it would have to probably be Another Brick in the Wall part 2.
Either "Train in Vain" by The Clash or "Sultans of Swing" by Dire Straits. Or how about "I Touch Myself", by the Divinyls"? "http://www.youtube.com/embed/wv-34w8kGPM?rel=0" PS. I suck at Internet. How do I embed a video? I've tried everything . . .
The Divinyls. There's an esoteric throwback. Just paste the youtube url in your message, it'll automatically embed.
Seems like a lot of love for Queen here and not a thing from the Beatles. A Hard Day's Night Strawberry Fields Come Together While My Guitar Gently Weeps Revolution They all work for me.