Changes

}}'''"You Know What You Are?"''' is the second track from 2005's ''[[With Teeth (halo)|With Teeth]]''. It is a very aggressive and upbeat song, featuring a gang-shouting chorus and heavy guitar tracks. A remix of this song by [[Clint Mansell]] appeared on the ''Doom'' soundtrack, and played during of end credits of that movie. The Its title strongly resembles a track on the ''[[Head Like A Hole (halo)|Head Like A Hole]]'' single, entitled "[[Head Like A Hole (song)#You Know Who You Are|You Know Who You Are]]."

This is the original album version.Beginning immediately with Dave Grohl's quick drumming, the song is differentiated as the only studio NIN song featuring prominent double bass technique. Joined by panning noise loops, a distorted guitar riff and echoing synthesizers, Reznor delivers each verse in yells, a delay effect bouncing his voice throughout the mix. The chorus opens up considerably, simplifying the drum rhythm and featuring loud, distorted bass frequencies. The bridge maintains the quick intensity of the verses but builds up using a new bassline and the repeated mantra, "Remember where you came from. Remember what you are." The final chorus is even louder than the first two, culminating in a wah guitar ending that gives way to quiet synthesizer chords accompanying the chorus piano line. The end of the last musical phrase segues into "[[The Collector]]."

This is a remix by Clint Mansell created for the soundtrack to the movie adaptation of ''Doom''. It closely resembles the original version, with only some altered vocal effects, new sound effects and a different altered mixlevels differentiating it from the album version.

"You Know What You Are?" has become became a staple of [[Nine Inch Nails]]' ''With Teeth''-era live performances. The song, when performed live, sounds very similar to the album version. The only big significant differences are more intense guitar sounds and the improvisational soloing by [[Aaron North]] during the bridgeand the more sudden ending, exemplified on ''Beside You In Time.''

Don't you know fucking know what you are?