Ahead of the highly anticipated world premiere of ‘Joker: Folie à Deux’ at the 81st Venice Film Festival, leading stars Joaquin Phoenix and Lady Gaga spilled the beans on their live singing scenes. Joaquin even said he was trying to emulate Frank Sinatra and Sammy Davis Jr. He also opened up about his extreme weight loss journey for the movie and shared he wouldn’t attempt it again. Watch the video to know more.