Well, as of tonight, House as officially blown my mind.
Now, I'm very pop culture-insensitive, so my only exposure to "A Whiter Shade of Pale" was a Japanese version with a piano instead of a Hammond. Still, it's a song embedded in my memory with a certain significance, and when House started to play it, I was shocked that I recognized it note-for-note but couldn't recall where it was from--kind of like a dream I had once about being in a church where the organist was playing the chapel song from Grandia 2.
So yeah, House. How 'bout that.