TLDR: not as much as you'd think
In 1990, Madonna was the cover star for American Cosmopolitan's 25th anniversary issue.
A quarter of a century on, and Madonna is also gracing the cover of the magazine's 50th anniversary edition - and she has some thoughts on what has changed for women in the intervening period.
Don't be fooled, not much has changed — certainly not for women. We still live in a very sexist society that wants to limit people. Since I started, I've had people giving me a hard time because they didn't think you could be sexual or have sexuality or sensuality in your work and be intelligent at the same time. For me, the fight has never ended.