Lady Gaga and her fiance Michael palansky made their red carpet debut in Venice and her look is instantly iconic Gaga walked the red carpet in a black voluminous Christian dioro kachu gown featuring a plunging neckline and accessorized with fabulous Tiffany diamonds and a dramatic Philip Tracer headpiece palansky wore a tux she flashed her big diamond engagement ring on camera the singer and actor was in town to Premier Joker fol ad do the movie musical in which she stars as Harley Quinn opposite Wen Phoenix's Arthur Fleck