WTH is that?

the rolling stone link has audio. My guess is it's a bonus track that wasn't on certain versions of the release. This is the first time I've heard it. Pretty cool :headbang:
 
It's a cool song for sure - I ended up buying the download at itunes, but it was under the title "Wraith". I like what WD does with the ending chorus - nice phrasing and feeling.
 
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