Regina is an opera by Marc Blitzstein, to his own libretto based on the play The Little Foxes by Lillian Hellman. It was completed in 1948 and premiered the next year. Blitzstein chose this source in order to make a strong statement against capitalism. In three acts, the musical style has been described as new American verismo, abounding in the use of spirituals, Victorian parlour music, dance forms, ragtime, aria and large, symphonic score.