Madonna Flashes Istanbul

During a performance of her hit "Human Nature," the 53-year-old material girl stripped down to a barely there bra and trousers and gave a cheeky flash of her right breast. She then finished the number by revealing a faux back tat reading "No Fear." This, understandably, sent the crowd into a frenzy.

Madge has certainly been "Causing a Commotion" on this tour, from pointing out the similarities between "Express Yourself" and "Born This Way" to showing a video montage with French right-wing politician Marie Le Pen avec swastika, she clearly isn't afraid of stepping over the "Borderline."

Watch the (obviously) NSFW (for some) video below.