Elphaba isn’t green because she’s “Wicked.” And it's not because of a curse either. The so-called Wicked Witch of the West in "Wicked: Part I," now out in theaters everywhere, is green because her mother drank a green elixir before her birth.

Mary Kate “MK” Morrissey plays Elphaba in Wicked on Broadway. On social media, she gives fans a look into her “ordinary days” as a musical theater superstar.

But Erivo wanted to actually be green, not have the color superimposed onto her skin in post. So, the film’s makeup designer Frances Hannon — who was thrilled by the actor’s insistence — took on the challenge of finding the right verdant hue.