The singer raced between two shows in the British capital on the back of a motorbike to perform as part of the Red Bull Culture Clash event.
She took to the stage at Wembley Arena in white biker leathers with the zip pulled down to expose her cleavage, but her energetic dance routine resulted in an embarrassing wardrobe malfunction, and she exposed her breast to the audience.
The star has now told fans she feels mortified over the nipple slip, writing in a post on Twitter:
Yes. Its true. I got straight off a moterbike from O2 to Wembley I didn't have time to change and then all of a sudden the zip got lower....— Rita Ora (@RitaOra) November 8, 2012
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