Katy Perry skips backstage before concerts – to test her outrageous costumes against ‘wardrobe malfunctions’.
The I Kissed A Girl hitmaker insists on her jump rope test – because she is scared she might accidentally bare her breasts in the middle of one of her trademark energetic dance routines.

She tweet “Usually I test out an outfit b4 (sic) shows by jumpin’ rope, make sure The Twins r (sic) gonna stay in the holder.”
And she reveals she almost had an onstage accident during a gig in Arras, France earlier this month (Jul09): “(When) I didn’t test. (I) almost had a SHOW!”