There is the 70's nite...Afro wigs, white suits, platforms shoes etc.
Then there is the 80's nite...Cindy Lauper attire.
There is caribbean nite....caribbean attire.
I usually see only a couple of cruisers that are fully decked out in the wigs, platform shoes, etc.
There could be other theme nites on a 14 niter....Have not done a 14 niter yet.
Enjoy your cruise!