An excellent offering again from DT.
The track in question is the first track on Octavarium, DT's eighth full-length album.
There were two versions to this song, both of which we're very common at one point, but these days it tends to lean more towards the cleaner version.
There are also many covers and affectionate playalongs of the song. Do your own research for those, they aren't hard to come by.
Things to listen out for: Excellent drumming, those very famous riffs which are so often covered.
Give it a slam:
(As always quality was as high as I could source within a given amount of search time)