Ikaika Kahoano (left) decided to leave O-Town to return home to Hawaii shortly after the group found success on Making the Band in 2000.
We probably know everything there is to know about the members of our favorite pop groups of yesteryear (some more than others! We still have the Spice Girls etched into our memories!)
But let's spare a thought for those original, forgotten, band members who made the big mistake - huge - of bowing out riiiight before the group hit the big time.
Click through to see what the band would look like had their errant members never left. We're sure they must be kicking themselves now!