There are few more stirring anthems than Les Misérables' "One Day More," which powerfully unites the show's cast at the end of the first act. The only way this song could be more moving would be if it featured not only one show's ensemble, but the casts of pretty much every major production of Les Mis from the last 30 years. For the musical's 30th anniversary, the Broadway production has created just that. Check it out in this exclusive video.

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