| live = N/A
}}'''"Zero-Sum"''' is the sixteenth and final track on the 2007 release ''[[Year Zero]].''
Musically, the song consists of Trent Reznor's signature piano playing on a grand piano, glitch music inspired programmed beats, and vocals pushed to the back of the mix. The vocals alternate between Reznor delivering vocals reminescent of dialog samples, which was a staple of early industrial music, and actually sung vocals that speak about humanity's inability to come together.
===Song title===