Radiohead/Awesome

Knowing how Broken Base-inducing and Something Completely Different Kid A is, and how it wasn't really promoted with a media blitz or any singles or whatever, you can't help but feel kind of awesome when it ended up at #1 in the USA for a week. Thom himself said "We were The Beatles... for a week."
Music video example: the gasping defiance on Yorke's face during the final chorus of the video for "No Surprises."
When Thom snuck into the Copenhagen Summit disguised as a press member in the name of finding out what the hell was going on.
A rather infamous one involving Prince, who is rather outspoken for his views regarding videos of his live performances being put up on YouTube. He decided to cover Creep at a live show one evening, and someone put it up online, only for that person to be served a cease and desist letter by Prince's lawyers. Cue Thom Yorke stepping in with, "Put it back up, Creep is our song." Never has Irony been so sweet.
There's a little awesome moment during 'The Daily Mail,' which begins as a soft ballad in the vein of 'Codex' or 'Pyramid Song' and then suddenly turns into a heavy rocker. The transition gives one chills.
Whenever the band plays "The National Anthem" live, Jonny Greenwood randomly tunes into whatever stations are being broadcast in the area via his FM radio, so you can imagine the crowd's surprise at the band's 2012 Mansfield, MA show when he tunes into, of all things, a radio station playing free-form jazz.