I think True Blue was when she really cemented her superstar and icon status.

Everyone who says since Ray Of Light....poppycock!

Madonna was a Pop Cultural Icon in 1985! Andy Warhol even made art about her....and Madonna and Sean Penns wedding was massively publicised....in two albums she had it!

True Blue established her as THE female pop icon of the millenia! Post - Madonna-Wannabe mania for 84 and 85, Madonna shwoed her first massive reinvention and really took everyone by storm in such new ways the whole world over...thats why her first world tour was the year after

By Ray Of Light she became a massive music legend!