Don't worry, this one won't get taken down. He actually coordinated with Disney/Pixar on it, thus the advertisements at the beginning and the end. The video is even available on Pixar's youtube profile.

This guy is amazing. I love all of his work, and if you're interested, mp3s of these and other stuff he hasn't made videos for are available on his lastfm profile.

The other 3 were taken down because Disney has a policy not to work with people who are infringing on their stuff, so when Disney asked him to make a video and song as promotion for Up, he had to take down the other 3.

...in that they're both music?