One element of Madonna's career that really takes center stage is how many times she's reinvented herself. It's easier to stay in one look, one comfort zone, one musical style. It's inspiring to see someone whose only predictable quality is being unpredictable.

And if you're horrible to me I'm going to write a song about you and you are not going to like it. That's how I operate.

We learned more from a 3 minute record than we ever learned in school

Bring on all the pretenders!

I get so excited when a song I wrote that's very personal to me goes No. 1 and I look down and see people singing the words back to me.

You might think I'm bulletproof, but I'm not.

In the future, artists will get record deals because they have fans-not the other way around...The only memento 'kids these days' want is a selfie. It's part of the new currency, which seems to be 'how many followers you have on Instagram'.