NSFW Video: Madonna Shows Her 53-Year-Old Right Nipple To Audience

Oh, Madonna. After doing a mash-up of her "Express Yourself" with Lady Gaga's "Born This Way" during a rehearsal, the superstar has now offered up another reference to a fellow diva singer: At her MDNA concert in Turkey last night, she showed off her right nipple.

While singing "Human Nature," Madonna did a striptease and then flashed the cup of her lacy bra, to wild screams.

Of course, this is a more controlled way of showing off her boobs, versus these leaked (and NSFW) pictures.

Madonna is currently in Europe and her concert will come stateside in August. When she kicked off MDNA, she aimed a rifle at the audience in Israel.