Madonna Flashes Breast During Istanbul Concert

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The reigning Queen of Pop sure does love some controversy!

Wearing Agent Provocateur’s # 1 selling bra, Madonna exposed her breast to a cheering crowd while performing “Human Nature” in Istanbul last night.

Now that’s how you express yourself!

Over 55,000 fans stood in line for hours outside the Turk Telecom Arena to see the pop diva perform for the first time in 20 years.

Judging by the crowd’s reaction, it was worth the wait. “I am very excited to see Madonna again because I was in her first concert 19 years ago, now I am in my 30s and I am really excited to see her again.”

Geez Madge… get them roots done!

(Editor's note: If you're looking for the "adult" moment of the video, go to about 2:55.)