For The First Time In Forever: Every great animated Disney movie, and most musicals in general, have what’s called the “I Want” song. The song in which the protagonist sings about their dreams which will drive the plot of the story. In Frozen, that song is “For the First Time in Forever.” It’s mostly sung by Anna as she revels in the excitement of seeing the castle gates opened for the first time in years. However, it also shows us what Elsa wants, which is for all this to just end, showing how the sisters will conflict later in the story.
Article source: https://www.cinemablend.com/news/2471862/moana-soundtrack-vs-frozen-soundtrack-which-disney-movie-has-better-songs-and-lyrics