An insider close to the tour is dishing on exactly how Britney is reacting to the. 17:13, 2 Nov 2017 Updated 10:57, 3 Nov 2017 | | Bookmark You know those nightmares you have when you're naked on stage and everyone can see your bits? Well Britney Spears just lived it,. In the video posted by a fan on YouTube, Spears can be seen briefly adjusting her black bondage-inspired outfit as she danced on stage, when her nipple accidentally popped out.