Gaara's Got A Jar Of Dirt
EDIT: As far as I've looked, I was the first person to do this! =D
xD I heard the song and thought of Gaara. Because of the "jar of dirt" on his back.
The song is "Jar of Dirt Remix" made from PPirates of the Carribean 2. You can find it here on Youtube. Look up the name.
This is a purely fan made video with no association to the anime company or music artist.