So evidently Valve was having a contest where entrants were to make a music video around the song "Exile, Vilify" by The Nation, which can be found playing on a hidden radio in Portal 2. I had no idea and I'm sorry that I missed it. Well, the contest is over so no need to break out Final Cut and Garage Band. Instead, you should check out some of the amazing work that was done by the people who entered.
The entries cover a wide range of themes, from stories about Caroline, to Rattman, to GLaDOS and Rattman compared to Chell and Wheatley. Interestingly, the winning entry doesn't retell anything from the Portal mythology at all, instead capturing the emotion of "Exile, Vilify" through bleak landscapes, a hoodie, and a sock puppet.
If you haven't heard the song yet, prepare yourself for a haunting, beautiful melody that really sticks in your head. The list of winners and "Best ..." categories can be found at Think With Portals, and my personal favorite that didn't make it into the contest can be found after the jump.
Like Justin McElroy and the other writers at Joystiq, I find this video to be one of the best. A shame it missed the entry deadline.