During Madonna's Istanbul, Turkey show on Thursday night — the latest show in her MDNA tour — the Material Girl momentarily eschewed the material of her bra while singing her song, "Human Nature," in what was clearly a purposeful nip-slip that couldn't be blamed on something as benign as a wardrobe malfunction a la Janet Jackson's 2004 Super Bowl performance.

Madonna also flashed the audience a temporary tattoo on her back that read "NO FEAR," reports the Daily Dish, and last week at her Tel Aviv concert, she displayed an image of right-wing French leader Marine Le Pen with a swastika emblazoned on her forehead. Le Pen threatened legal action against Madonna if she shows the image when she performs in France.

Madonna's MDNA international tour, which just kicked off, will include 86 performances in 30 different countries, reports E! Online.

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