In the movie, Christian, the one who sings the other song bedsides Roxanne, is in love with the famous prostitute, Satine. They both love each other, but an evil man called The Duke paid for her, so now she has to go to dinner with him and have s** with him. The other man, who is singing Roxanne, is just telling his story. Christian, who says he won't be jealous, is feeling jealous, and that is driving him mad.