Madonna has caused outrage by purposefully exposing her right breast while performing in Istanbul over the weekend. The singer began stripping off her clothes while performing her hit 1995 song \"Human Nature\", first removing her white shirt, before she simply pulled down her bra to give the audience a good look at her right nipple. But it seems Madonna\'s latest scandalous action may have been just a step too far for some people, who have taken to Twitter to slate her. One fan wrote: \'\'Isn\'t Madonna a little too old to be flashing nip on stage? With her kids in the background (as they\'re performing with her on tour?)\'\' But other tweeters were more clued up about the star’s actions, with actress Christina Applegate saying: “Reading twitter this am and there r all these tweets about Madonna and her nipple flash. And we are shocked because...? \'\'What I\'m saying is. Its not like Sarah Palin had a nip slip, its Madonna”.