Prends garde à toi is best known as the warning refrain in the Habanera from Georges Bizet's Carmen, first performed in Paris in 1875. Sung by Carmen as she cautions the men watching her, the line distills the opera's themes of desire, freedom and danger. Carmen became one of the world's most performed operas, and its melodies entered popular culture through films, adverts and parodies. Online, this short excerpt survives as a compact dramatic cue, reused whenever a creator needs instant operatic tension without a full aria.