I rarely watch music videos, but I'm glad I happened to watch this one, as I find it quite inspirational - the song even more so. Definitely a good motivator.
Another one that I've been playing a lot lately (and that I'm very close to tiring of) is this one:
For some reason I watched some of this video as well (really, I almost never watch them, especially since my computer/internet doesn't seem to get along with youtube, and cos I don't really see the point), but only for about a minute, and then gave up. Anyway, I like the song, it's catchy and it's got a good beat - I've been dancing to it around my flat while cleaning (yeah, more dancing than cleaning, unfortunately).
There's also been a couple of Finnish ones I discovered this summer, and "same old" in the shape of Mumford & Sons and Of Monsters and Men. But I think I need to find something new to replace the two top ones soon, before they're damaged beyond repair. Any ideas?