The film's star, Hugh Jackman, recently revealed he was trying to persuade Hathaway to take on the role in the retelling of Victor Hugo's classic story, and it seems his efforts have paid off.
The actress reportedly fought off competition from Amy Adams and Rebecca Hall to land the singing role. Hathaway will join Jackman, Russell Crowe and Helena Bonham Carter in Hooper's ambitious new film.
If you have any doubts about Anne being in the movie, you can watch her performance of "On My Own" from the musical during the Academy Awards last year below. 'Les Miserables' is set to hit theaters Dec. 7, 2012.