Rumors of a reunion of the 20-year-old boy band, NSYNC, have sparked up among fans. What does NSYNC stand for? One would wonder if the acronym stands for something rather bizarre or meaningful. It stands for the last letters of each of the original members’ first names, that is - JustiN, ChriS, JoeY, JasoN & JC. The Jason stands for Jason Galasso who left the group before the band ever came into the limelight. On July 24, 2001, "Celebrity," the last album by NSYNC, was released. Three compilation albums were then released: "Greatest Hits" on October 25, 2005; "The Collection" on January 25, 2010; and "The Essential *NSYNC" on July 29, 2014.