Jessie J can most certainly sing her way out of a box—and in one too.
As a child, she used to impress people at auditions by pretending she was in a box and being able to talk coherently. It sounds like she’s trapped in a bubble or a balloon, but you can still understand what she’s saying. Now that she's older, Jessie J has expanded her talent and can actually sing with her mouth closed, which she gladly demonstrated on a recent episode of The Graham Norton Show.
You've never heard “Bang Bang” like this before.
While Jessie J probably won’t show off this trick at a concert, she could probably bring it out as a guest vocal on her next song.Screengrab via BBC/YouTube