News: Hmmm....Madonna takes issue over Kim Kardashian's nude magazine cover

La Isla Bonita!

She's a little late to the game. On Thursday Madonna decided to take on Kim Kardashian's naked backside cover for Paper magazine, which came out over a week ago.

The 56-year-old singer posted an old image of herself from the nineties where she was topless but her chest was covered with a black bar.

The Material Girl hit maker's caption read, 'Its confusing. Nipples are considered forbidden and provocative but exposing your ass is not. #flummoxed (sic).'

The Blonde Ambition star has often been criticizes for showing off her chest in magazine shoots and on fashion runways.

This latest move by the Grammy winner seems to be a show of jealousy as she used to be in the spotlight as much as Kim, but lately she has not received as much attention.

The 34-year-old wife of Kanye West vowed to 'break the internet' with her nude photo shoot, something the Like A Virgin singer would have tried in the eighties and nineties.