the 56-year-old pop star posted the image of the iron lady on instagram - before quickly deleting it just moments later .
some of her fans took umbrage to the photo , which madonna captioned with : ` thank you margaret thatcher and ` thanking ' followed by ' #unapologetic #rebelheart ' and a love heart .
madonna has immersed herself in the gay community and was named one of the greatest gay icons of all time .