Why They Split: Justin Timberlake is no dummy. In 2002 he realized that the boy band craze was quickly coming to an end. He called for a group hiatus and began to focus on his solo career. The others thought about carrying on as a four-piece, but wisely decided against it. Meanwhile, Justin went onto a huge solo career – before completely giving it up to focus on movies.
Last Performance: The group did a Bee-Gees medley at The Grammys in 2003, and the next year sang the "Star Spangled Banner" at a charity basketball game.
Odds Of A Reunion: Being an aging member of a boy band is shockingly lucrative. Just ask a member of the New Kids On The Block, or even the Backstreet Boys. They're raking in millions by singing the hits to nostalgic moms. N'Sync could make a killing – especially if they wait another six years or so – but don't hold your breath for this one. Justin doesn't even want to make new music on his own, let alone with N'Sync. All that said, it's possible in 15 years he's offered a stupid amount of money for three months work. Stranger things have happened. We'll say there's a 30% of some sort of brief reunion at some point in the distant future, but virtually no chance that the group reforms for any extended period of time.