Margot Robbie stole hearts with her portrayal of Harley Quinn in ‘Suicide Squad’ and ‘Birds of Prey.’ But now the character has been passed on to Lady Gaga. The singer is set to play the iconic role in ‘Joker: Folie á Deux.’ At the Golden Globes Award pre-show, Margot Robbie revealed how she feels about Lady Gaga playing her character.