Even though we think Madonna - for all her faults e.g. that mask for a face - has still got an enviable rack, we're not sure how we feel about her getting her boobs out on stage. Or even one boob.
As this fan-filmed video seems to show, the Material Girl did away with a section of her bra during one of her songs on the Istanbul leg of her MDNA world tour.
From the looks of it (best listen on mute, it's a terrible quality recording), she pulls a panel of her bra down to expose her boob.
This wouldn't be the first time Madonna's boobs have got attention - from the Gaultier conical bra to those pre-fame nude modelling shots which emerged in the early 80s, from completely exposing them (behind some very classy lace, mind) in the Vogue video to demurely covering them up in the promo videos for Ray Of Light's singles. But at 53, is she too old to be getting a boob out? And why only one?
When it comes to controversy, she's an old hand
This isn't her first controversy of the year. In May, she upset Lady Gaga by Madonna-has-a-dig-at-Lady-GaGa-for-nicking-her-song6/">mashing up her own Express Yourself with Gaga's Born This Way, which she's previously said was "reductive".
She also upset One Direction fans by admitting that she had Madonna-has-no-idea-who-One-Direction-are/">no idea who the cuddly five-piece are. She told Daybreak: "That's a pop group, right? Sorry. I haven't seen them yet, no, sorry. Slap my hand.”
Not content with setting a cat amongst the pop pigeons, she riled house music producer Deadmau5 when she Madonna-defends-herself-on-Twitter-after-deadmau5-criticises-her-for-drug-reference/">made a joke about taking drugs at Miami's Ultra festival.
Well, at least she hasn't upset anyone with this latest boob!