When churning the Chemical Brothers songs over and over in my head, I am tempted to post a whole bunch of songs. But I always come back to The Private Psychadelic Reel. Always.

There's many many others that come a close half 2nd (and by that I mean a miniscule close half second) but The Reel is ultimate. It's my favorite song in the world.

The Sunshine Underground. Hands down, easily, for me. Its just an unexpectedly beautiful and divergent track. The builds and crescendos are lovely, and that "omg are you about to have a bad acid trip" tense moments burst into happy times again. The production and engineering is brilliant too, its got a lot of dynamic to it yet is still a big loud track.