Barbie as the Princess and the Pauper is a 2004 direct-to-video computer animated Barbie film, and the first musical in the Barbie series. It was directed by William Lau and starred the voice of Kelly Sheridan, who has been voicing Barbie in all the CGI films to date, as both Anneliese and Erika. The story is not related to the 1939 film The Princess and the Pauper but is loosely inspired by the Mark Twain novel The Prince and the Pauper.

In her first animated musical featuring seven original songs, Barbie comes to life in this modern re-telling of a classic tale of mistaken identity and the power of friendship. Based on the story by Mark Twain, Barbie as The Princess and The Pauper features Barbie in an exciting dual role as a princess and a poor village girl - two girls who look amazingly alike. The girls' paths are fated to cross when Princess Anneliese is captured and Erika, her look-alike, must try to save her. Can Erika pretend to be the Princess and foil her captor, the evil Preminger? And what of the handsome King Dominick, who falls in love with Erika, mistaking her for Princess Anneliese? In this magical musical performance, two beautiful, adventurous girls dare to follow their dreams and discover that destiny is written in a very special place: your heart. Written by Adam Fenton and Janine McGoldrick