Ariana Grande

Ariana burnt her backside as she prepared to film an important scene in Wicked.

She recalled to Variety: "Long story short, we were filming Defying Gravity.

"And two things happened right before that shot. We had broken for lunch and for some reason that lunch had so many onions in it and Cynthia (Erivo) was like having a heart attack and also the steamer had burnt my butt cheek. So just know next time that you see the broom shot …

"My a*** cheek was burning. Next time you see that shot picture there was an ice pack in between takes and onions that she (Cynthia) was suffering from. And that's our story."