Lady Gaga’s Harley Quinn makes Joaquin Phoenix’s Joker feel less ‘alone’ in ‘Folie à Deux’ trailer

​ Talk about a “bad romance.” Lady Gaga is making her long-awaited debut as Harley Quinn alongside Joaquin Phoenix’s reprisal of his Oscar-winning Joker in the first trailer for “Joker: Folie à Deux” released on Tuesday. Read More Breaking News, Latest News and Videos | CNN