Back in the 90's, there were ska bands like was Sublime, Reel Big Fish, NoFX(part ska and part punk), Goldfinger, The Mighty Bosstones, etc.
Some of those are still around today. And there are plenty of newer ska-punk bands like Capdown, Leftover Crack and Sonic Boom Six who are doing pretty well at the moment too. Even The Specials are still touring; people love ska. It's good-time dancey music, that sort of thing never goes out of style.