Lady Gaga chats with ET’s Denny Directo at the premiere for ‘Joker: Folie à Duex.’ The actress and singer shares how she helped co-star Joaquin Phoenix prepare for his musical numbers in the sequel. ‘Joker: Folie à Duex’ is in theaters on Oct. 4.
How Lady Gaga Helped Joaquin Phoenix Sing in Joker: Folie à Duex (Exclusive)
By Michael