If you’ve ever taken a cruise you know how massive the ships are and how they’re like a city on water.   One of best vacations ever had was a cruise to the Caribbean, so much fun and so many things to do without ever leaving the ship.  We saw a couple of good shows but nothing like a Taylor Swift concert. This video shows the scale of the ship as Taylor performs for the crowd and shares with Entertainment Tonight how thrilling it was to play for the fans on the cruise.