*'''[[Happiness In Slavery (halo)|Release]]:'''A promotional release for Happiness In Slavery.
*'''[[Happiness In Slavery (song)|Song]]:'''The fifth track off of '''''[[Broken]]'''''. Versions of this track appear on '''''[[Fixed]]'''''.
===[[Head Down]]===
The sixth track on ''[[The Slip]]''. A version of this song appears on the bonus DVD of the physical edition of ''[[The Slip]]''.
==="Head Like A Hole"===