This beautiful Princess Liana Barbie doll sings two songs from Barbie and the Diamond Castle the movie. Her necklace lights up when she sings, and her glittery gown can be magically transformed! Barbie and Teresa star as two best friends Princess Liana and Princess Alexa on their journey to discover music, magic and the power of friendship in the Barbie and the Diamond Castle Film. Doll comes complete with an elaborate gown, tiara, and mirror.