"Discipline" is a song by the American industrial rock band Nine Inch Nails from their seventh studio album, titled The Slip (2008).

[1] Since the announcement, Nine Inch Nails released the 36-track instrumental album Ghosts I–IV in March 2008 through Reznor's independent label The Null Corporation.

[3] On the same day, the track was also made available for download at the official Nine Inch Nails website for free, as well as multitrack files of the song for remixing.

[8] The largely electronic instrumentation of the song has been compared to Depeche Mode, Bauhaus, Siouxsie and the Banshees, and Giorgio Moroder.

[12] Harvey compared "Discipline" to one Nine Inch Nails's first singles, "Head Like a Hole", saying "['Discipline'] comes from a long-established and now label-free artist trying to reflexively reassert his position in the pop landscape, on his own terms.

[20] Pitchfork's review of The Slip called the track "another solid pop song about constraint from the guy who, following Prince, brought kinky sex odes to strip-mall bars.