Princess Anna is the main protagonist of the musical adaption of Frozen, based on the character of the same name.
Background
Her role in the story is relatively the same, with a few differences littered throughout, including meeting Kristoff on Coronation Day and donning an ice harvester outfit given to her by Kristoff before purchasing her winter gear from Oaken. More significant is when Anna confronts Elsa in the latter's ice palace. Anna learns that the white streak in her hair is from a nearly fatal accident caused by Elsa rather than something she was born with.
Anna is given several new songs, most of which are duets. The first is "A Little Bit of You", sung by herself and Elsa as children when they create Olaf. Another is "What Do You Know About Love?", a confrontational, and later romantic duet in which she and Kristoff question their differing views on love. Anna's first and only solo is "True Love", performed after Hans leaves her to die alone. The song is the dramatic, melancholy climax of Anna's emotional arc, where she reevaluates her tragic life while simultaneously accepting her oncoming death.