United Kingdom, Jan. 28 -- Cynthia Erivo is often approached by fans in public toilets.

The 38-year-old actress stars as Elphaba in the big screen adaptation of the musical 'Wicked' alongside Ariana Grande and has encountered those who have seen the film trying to recreate her character's famous "battle cry" from the end of the song 'Defying Gravity' without even introducing themselves first.

Speaking on 'Jimmy Kimmel, Live!', she explained: "Sometimes it's really delightful, sometimes it's really, really wonderful and I think what's lovely is that people are willing to try anyway. If the emotion has moved you to do that without even introducing yourself, then we've done something right and I'm just going to go with it.

"I have been in...