Why? Because she's Madonna, that's why. She's a natural performer, she loves to connect with the crowd, and she wanted all of those screaming Istanbulites to know that her nipple is just as pink and perky as any pop star's.
Can anyone tell what song she was singing when this all went down? We could hear a few of the words, but the melody was completely flooded by the atonal screams of her fans. We're not judging them; we'd probably start wooing our brains out if Madonna showed up and flipped a nipple our way, too.
· See more pics (and a video) of Madonna's nip flash at Egotastic (egotastic.com)