Question du Jour

I'd be hard-pressed to choose anything other than A Day in the Life; the song itself has such an inherent ethereal sadness-meets-the-cultural-apex-of-the-century thing to it AND the actual recording was a big cultural event in & of itself, and it was absolutely bananas.

SIDE NOTE: if the question was if you could pick a single day obviously I'd pick June 14, 1965.