Madonna

Madonna 

Download has shocked fans while performing in Turkey by briefly exposing one of her breasts on stage.
The Give Me All Your Luvin' singer, who hit Istanbul as part of her MDNA world tour, decided to strip off while singing track Human Nature, flashing her boob at the crowd.
Digital Spy reports that Madge teased fans by removing her shirt and then peeled down the front of her lace bra, flashing a nipple as her adoring audience cheered.

This is not the first time the Queen of Pop has caused controversy on her current string of shows, previously causing outrage after using a swastiska image in one of her pre-recorded videos.MTV
She has also caused tension with Lady GaGa after appearing to take a swipe at the star by performing a mash-up of her hit Express Yourself with GaGa's Born This Way - which has previously been compared to Madge's track.
After performing the medley of songs, the 53-year old is said to have yelled: "She's not me", in an apparent dig at Lady G.
The Poker Face star has since retaliated, addressing Madonna's antics during her gig in Auckland, New Zealand where GaGa apparently criticised those who make a 'mockery' of others' music.