Also on these boards
Some fans say that the song is describing Elsa because of her ice powers and it can be true. But when one remembers Annas statement to Hans at the near end of the movie, The only frozen heart around here is yours, they would say that the song is referring to Hans, especially at the songs conclusion Beware the frozen heart!
Disney's Frozen Anna and Kristoff: since the movie isn't out yet, I don't know if these two will be a couple, but I sure like this picture which dipicts that they are! :) I ship these two 100%.